A portion of the periodic table of elements is reproduced here. Based on their

relative positions, what conclusion can be drawn about these metallic elements?

A All the elements have the same reactivity.

B Potassium is much more reactive than iron.

C Chromium is twice as reactive as vanadium.

D Calcium is much less reactive than scandium.

Answers

Answer 1

Based on their relative positions in the periodic table, the conclusion that can be drawn about these metallic elements is that "Calcium is much less reactive than scandium". Option D is correct.

The periodic table is arranged in order of increasing atomic number, with elements that have similar chemical and physical properties placed in the same vertical column, known as a group or family. Elements in the same group generally have similar reactivity, with elements towards the top of the group being more reactive than those towards the bottom.

In this portion of the periodic table, calcium is in Group 2, while scandium is in Group 3. Since scandium is higher in the group, it can be concluded that it is more reactive than calcium, which is lower in the group.

It's important to note that the reactivity of elements is influenced by many factors, and the periodic table provides only a general guideline. More specific information about an element's reactivity can be obtained through experimentation and observation.

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Related Questions

how does the differences in starting allelic frequencies between the two populations affect the changes in frequencies? explain your reasoning.

Answers

The differences in starting allelic frequencies between the two populations affect the changes in frequencies is gene flow will cause the dominant allele to affect frequency changes.

Allele frequency is the proportion of an allele present in a population. Changes in an allele can be caused by several things such as migration, mutation, non-random mating, or natural selection.

Migration can be due to the presence of genes in and out of the two populations which can cause gene flow to the two populations. Due to marriage or so on gene flow will change the allele and genotype frequencies of the original population. The dominant allele will curb the recessive allele so that what appears is a few differences and has a lot in common. Changes in allele and genotype frequencies of a population are an indication of microevolution.

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Dave Duerson, the football player discussed in the opening vignette as well as later
in the chapter, suffered from another type of brain injury, chronic traumatic
encephalopathy or CTE. While some recovery often occurs after a stroke, depending
on the extent of the damage, there is little hope of recovery with CTE. CTE tends to
result from repeated head trauma.

Why is there such a poor prospect for recovery from CTE?

A.CTE tends to affect a very small area of the brain, but that area tends to be
totally destroyed.
B.The damage tends to be extensive and it often triggers a continuing disease
process in the brain.
C.The brains of adults in this age range are less plastic than the brains of older
people who are more likely to experience a stroke.
D.The particular part of the brain that tends to be affected is less likely to recover.

Answers

The damage tends to be extensive and it often triggers a continuing disease process in the brain.

What is the brain?

The brain is a very sophisticated organ that governs every bodily function, including thoughts, memory, emotion, motor skills, respiration, temperature, and hunger.The central nervous system, sometimes known as the CNS, is made up of the spinal cord and brain together.In a typical adult, the brain weighs roughly 3 pounds and contains 60% fat.Salts, water, protein, and carbs make up the remaining 40% of the body.A muscle is not the brain itself.Along with nerves, blood arteries, and glial cells, it also has neurons.

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7. A child who can roll their tongue (curl it) inherited an allele for tongue curling gene from both parents. What is the child's genotype for tongue curling?

homozygous
heterozygous

Answers

It's a homozygous recessive gene, I assume.

Answer : It would be the homozygous genotype.

which observation should the scientists see as most promising for developing a testable hypothesis that helps determine the connection between organic farming and biodiversity?

Answers

The observation that stands out as the most promising for developing a testable hypothesis is the observation that organic farming operations support a greater variety of species than conventional farming operations.

What is hypothesis?

Hypothesis is an educated guess or prediction about the outcome of a scientific experiment or study. It is a statement that can be tested and verified through scientific research. A hypothesis is a tool used by scientists to organize and focus their research. It gives direction and structure to the research process, allowing the scientist to narrow their focus and avoid collecting unnecessary data.

This observation can be used to develop a hypothesis that organic farming supports higher biodiversity than conventional farming, and then this hypothesis can be tested by comparing biodiversity levels in organic and conventional farming operations.

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one characteristic that taxonomists use to distinguish protists from fungi is the presence of a nucleus. true or false?

Answers

Answer:

False.

Explanation:

Both protists and fungi are eukaryotic organisms, which means they have a true nucleus. Therefore, the presence of a nucleus cannot be used to distinguish between protists and fungi. Other characteristics such as cell structure, mode of nutrition, and reproduction are used to differentiate between these groups.

thinking about the minimum parental investment necessary for a biological offspring to survive, as an explanation of sex differences in mating strategies, is an example of:

Answers

This is an example of the concept of parental investment, which is an evolutionary theory that states that parents will invest more resources into their offspring when there is a greater chance of the offspring's survival and reproductive success.

Parental investment theory is also used to explain the differences in mating strategies between the sexes, as males are more likely to invest less in their offspring than females due to the lower costs associated with reproducing.

A biological offspring is an individual that is biologically related to its parents through the transmission of genetic material. This typically involves a process of sexual reproduction, in which two individuals (usually of different sexes) combine their genetic material to create a new organism that contains elements from both parents.

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a genetic switch turns on graying hair in response to . a genetic switch turns on graying hair in response to .

Answers

Male pattern baldness has a genetic switch that turns on in response to male hormones.

The correct option is option D.

Male pattern baldness is basically the most common type of hair loss which is observed in men. Male pattern baldness is basically related to the genes as well as the male sex hormones. Baldness usually follows a certain pattern of receding hairline as well as the hair thinning on the crown.

Male pattern baldness is found to be associated with male sex hormones which are known as androgens. The androgens perform many functions, one of which is regulating hair growth. Every hair strand present on our head has a growth cycle. In the case of male pattern baldness, this growth cycle of the hair gets weakened and the hair follicle shrinks and ends up producing shorter and finer strands of hair. This growth cycle for each hair eventually ends and no new hair then grows in its place.

--The given question is incomplete, the complete question is

"Male pattern baldness has a genetic switch that turns on in response to ________.

A) age

B) size

C) weight

D) male hormones"--

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One end has a specific binding site for a particular amino acid and the other end has the sequence that can pair with a codon, called an anticodon.

Answers

tRNA molecules are adaptor molecules that have one end that can read the codon sequence of an mRNA molecule, while the other end has the binding site for a particular amino acid.

This codon-amino acid pairing is mediated by an anticodon, which is a sequence of three nucleotides located on the tRNA molecule that is complementary to the codon on the mRNA.

The anticodon of a given tRNA can bind to one or a few specific mRNA codons and is responsible for pairing the correct amino acid to the polypeptide chain that the ribosome is assembling.

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Small lipid soluble molecules would move through the plasma membrane by:_________

Answers

Small lipid soluble molecules would move through the plasma membrane by diffusion.

The construction of the lipid bilayer permits little, uncharged substances like oxygen and carbon dioxide, and hydrophobic particles like lipids, to go through the phone film, down their focus slope, by straightforward diffusion.Osmosis is a sort of basic dispersion where water atoms diffuse through a specifically penetrable layer from areas of high water fixation to areas of lower water concentration.

Water goes through the lipid bilayer by dissemination and without really trying, yet the vast majority of it travels through exceptional protein channels called aquaporins.Lipid solvent substances can enter a phone by dissolving in the lipid piece of the layer and diffusing through it. The more prominent the lipid dissolvability, the more promptly a particle will go through the layer.

Likewise in the event that its s tiny particle it can get straightforwardly through the phospholipid bilayer.The water streams down its own focus angle, with a net development toward the locale that has a higher convergence of solutes. This development of water across a semipermeable layer because of an unevenness of solute is called assimilation.

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Students investigated the pitch of sound. They took two metal bowls of the same size. They filled half of one bowl and three-fourths of the second bowl with water. Using a wooden stick, they struck the edges of the bowls gently and sequentially. What is the difference in the pitch of the sound produced in both the bowls? Give reasons for your answers.

Answers

A sound wave, like any other wave, is introduced into a medium by a vibrating object. The vibrating object is the source of the disturbance that moves through the medium.

What is Pitch of sound?

The vibrating object that creates the disturbance could be the vocal cords of a person, the vibrating string and sound board of a guitar or violin, the vibrating tines of a tuning fork, or the vibrating diaphragm of a radio speaker.

Regardless of what vibrating object is creating the sound wave, the particles of the medium through which the sound moves is vibrating in a back and forth motion at a given frequency.

The frequency of a wave refers to how often the particles of the medium vibrate when a wave passes through the medium. The frequency of a wave is measured as the number of complete back-and-forth vibrations of a particle of the medium per unit of time.

Therefore, A sound wave, like any other wave, is introduced into a medium by a vibrating object. The vibrating object is the source of the disturbance that moves through the medium.

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What made the discovery of penicillin significant?

Answers

The discovery of Penicillin is significant because Penicillin wаs the first effective аntibiotic thаt could be used to kill bаcteriа.

The discovery of penicillin wаs а mаjor medicаl breаkthrough. Penicillin wаs the first effective аntibiotic thаt could be used to kill bаcteriа. This meаnt thаt cures for serious illnesses were possible even if the pаtient hаd the diseаse. Penicillin hаd been discovered during the 19th century, but it wаs Аlexаnder Fleming who first reаlised its greаt importаnce in 1928. During World Wаr I, he noticed thаt аntiseptics seemed unаble to prevent infection, pаrticulаrly in deep wounds. He decided to try to find something thаt could kill the bаcteriа which cаused infections like septicаemiа.

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What is the order of an E2 reaction chegg?

Answers

E2 reaction is a second-order reaction.

In general , the E2 mechanism is the process of a bimolecular elimination that is mostly a one-step mechanism. But here the carbon -hydrogen and carbon-halogen bonds usually break out and results in the formation of a new double bond. While inside  the E2 mechanism, the base that is present is the part of the rate-determining step and plays a huge impact on the mechanism.

Hence in E2 reaction both the substrate and the base takes active part in the single-step mechanism, so E2 is the second order reaction.

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Which front brings several days of steady rain or snow into an area

Answers

A cold front is a front that provides a region many days of steady rain or snow.

In a noticeable surface trough of low pressure, a cold front is the leading edge of a cooler mass of air at ground level that replaces a warmer body of air. It frequently develops near the leading edge of an extratropical cyclone's cold air advection pattern, also referred to as the cyclone's dry "conveyor belt" flow, which is to the west in the Northern Hemisphere and to the east in the Southern Hemisphere. Temperatures on either side of the barrier can vary by more than 30 °C (54 °F). Rain can fall along the boundary if there is enough moisture in the air. A thin line of thunderstorms may develop along the frontal zone if there is substantial instability along the boundary.

A large rain shield may creep in behind the front if instability is insufficient, and the rain's evaporative cooling may enhance the temperature difference across the front. The transitional seasons of the fall and spring are when cold fronts are strongest, and the summer is when they are weakest. When a mass of air that is somewhat colder travels into an area of warmer air, it forms a cold front. The colder, drier air elevates the warmer, moister air at the surface by creating a steeply sloping boundary beneath it. When there is adequate moisture available, this frequently results in cloud formations with a strong vertical development that may seem as a line of showers and thunderstorms.

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What method would a scientist use to learn about the number of individuals of a strawberry plants

Answers

Answer:

mendelian law of segregation

Why must you follow directions when applying fertilizer?​

Answers

Answer:

Fertilizer isn't a problem if it's used carefully. If you use too much fertilizer or apply it at the wrong time, it can easily wash off your lawn or garden into storm drains and then flow untreated into lakes or streams.

Explanation:

if we ran single stranded dna fragments in a lane of our gel, would be able to see it with the help of uv light?

Answers

Answer: no

Explanation: DNA is to small

before traveling to the rest of the body, all absorbed nutrients or toxins must pass through the .

Answers

All ingested substances, whether nutrients or poisons, must pass through the liver before reaching the rest of the body.

Describe the liver.

The liver is a gland and an organ in the human body. Its size is comparable to a football and it is spongy, wedge-shaped, reddish-brown in hue, and Depending on your height and weight, the size will change. The liver is a vital organ that serves hundreds of vital tasks for maintaining life.

Because it produces proteins and hormones that are required by other bodily components, it is also a gland. The liver is the largest internal organ in an adult, weighing on average three pounds. The liver is often found on the right side of the body, beneath the ribcage. The liver is on the left side in a condition known as situs inversus.

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Describe the ecosystem. Is this a grassland? A forest? A desert?
Record abiotic factors you see in the ecosystem such as water, nutrients, rocks, and sun.
Document and describe the different types of plants, mushrooms, and animals that you see. Take pictures.
Measure a square 10 meters by 10 meters, and mark it off with the rope or cones. Describe every plant and animal species you encounter in the 100 square meters and count the number of individuals. If you are describing grass or some other extensive groundcover, estimate how much square footage it covers.
Use a dichotomous key to identify as many different plants as possible. You may need to take pictures and then use an online key later.

Answers

Answer:

An ecosystem is a community of living and non-living things that interact in a specific environment

Explanation:

It can include forests, grasslands, deserts, wetlands, etc. Abiotic factors include water, nutrients, rocks, sun, temperature, etc. Living components include plants, animals, fungi, and microorganisms. To understand an ecosystem, consider both its physical and biological components and their interactions.

pointing the toes downward is called: group of answer choices extension. depression. dorsiflexion. plantar flexion.

Answers

Pointing the toes downward is called Dorsiflexion and plantar flexion

The deep peroneal nerve supplies these tendons, which are found on the front of the leg. A person may not be able to elevate their foot if this nerve is damaged.

In contrast to dorsiflexion, plantar flexion entails moving the foot downward and toward the ground.

The foot flexes between 20 and 50 degrees downward to produce plantar flexion.

The muscles that induce plantar flexion are found on the inside of the leg and on the rear (posterior) of the leg. They enter the back of the foot through the ankle joint. These comprise the long gastrocnemius soleus and the posterior flexor digitorum of the tibia

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Celery stalks that are immersed in fresh water for several hours become stiff. Similar stalks left in a 0. 15 M salt solution become limp. From this we can deduce that the fresh water_____.

a. And the salt solution are both hypertonic to the cells of the celery stalks is hypotonic

b. And the salt solution is hypertonic to the cells of the celery stalks is isotonic

c. And the salt solution is hypertonic to the cells of the celery stalks is hypertonic

d. And the salt solution is hypotonic to the cells of the celery stalks

Answers

Celery stalks become stuff when immersed in freshwater but become limp in salt water because the salt solution is hypotonic to the cells of celery stalks. The correct option is Option D.

This condition occurs due to osmosis. Osmosis is the movement of water molecules from a solution with a high concentration of water molecules to a solution with a lower concentration of water molecules, through a cell's partially permeable membrane. In salt solution, there is a higher concentration of solutes in the solution than in the cells of celery stalks. So it creates a hypotonic environment and the water moves out of the celery stalks hence it becomes limp. But in freshwater solution, water enters the cell and fills the spaces between the cells. So, the celery stalks become stiff when immersed in fresh water.

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All of the following describe transport proteins EXCEPT
Group of answer choices
they are very specific in the type of molecule they transfer.
they are embedded in the cell membrane.
they allow large molecules to pass across the cell membrane.
they help small hydrophobic molecules to pass across the cell membrane.
there are hundreds of types in the human body.

Answers

The cell membrane contains transport proteins that enable the selective transit of particular molecules from the surrounding environment. Every transport protein is particular to a certain type of molecule.

Which three transporter proteins are there?

Transport proteins that participate in assisted diffusion include channel proteins, gating carrier proteins, and carrier proteins. An example of a transport protein is a channel protein, which functions as a pore inside the membrane to allow water molecules or tiny ions to pass through fast.

What kinds of transporters are there?

ABC transporters, P-type ATPases, and the solute carrier family are the three primary families of membrane transporters (SLC). Primary active transporters known as ABC transporters move a variety of substrates, primarily to the exterior of a cell membrane and organelle.

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explain the advantage of ovovivipary over ovipary as a reproductive strategy​

Answers

Answer:

ovoviviparous fish, the eggs are fertilized inside of the female. The eggs remain within the mother while they develop allowing for a greater degree of protection from predators and difficult environmental conditions than in oviparous fish.

Explanation:

Oviparity is a mode of reproduction in which animals lay eggs. Ovoviviparity is a mode in which animals lay eggs and keep them inside the mother's body until hatching. Viviparity is the mode of reproduction in which animals directly give birth to young ones

I got help from

Which of the following is NOT true regarding allergens?

Answers

Poultry food is not considered a major food allergen among the top eight

Which of the following is not an allergen?

Food Allergen Labeling and user Protection Act of 2004 law identifies eight foods as major food allergens: milk, eggs, fish, shellfish, tree nuts, peanuts, wheat, and soybean. the convention passed the Food Allergen Labeling and Consumer Protection Act of 2004 (FALCPA). This law recognized eight foods as major food allergens: milk, eggs, fish, Crustacean shellfish, tree nuts, peanuts, wheat, and soybeans.

More than 170 foods have been announced to cause allergic reactions, according to Food Allergy Research & Education. but the vast most are caused by the “Big Nine”: milk, eggs, nuts, fish, crustaceans, shellfish, wheat, soy, and sesame.

So we can conclude that The following foods are contemplated to have a low potential for causing allergies:

Meat: Lamb, chicken.

Vegetables: Rice, sweet potato, carrots, rhubarb, and asparagus.

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why is high magnification not enough to give biological details of cells?

Answers

Poor resolution means that the picture is biurry. Enlarging it just gives you a bigger blurry picture.




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Microscopes allow us to see the microscopic world. While high magnification is useful for observing the overall shape and structure of a cell, it is not sufficient to reveal all the details of a cell. To see smaller structures and subcellular details, higher resolution microscopes are necessary. Therefore, understanding the limitations of microscopes and choosing the appropriate tool for the job is crucial in the study of biology.

When we observe a biological specimen through a microscope, the amount of information we can gather depends on the resolution of the microscope. Resolution is the ability of a microscope to distinguish two closely spaced structures as separate entities. In other words, it determines how much detail we can see in an image.

At high magnifications, we can see the overall shape and structure of the cell, but to see more details, we need a microscope with higher resolution. This is because many biological details of cells, such as the different organelles and subcellular structures, are too small to be resolved with a low-resolution microscope, even at high magnifications.

To achieve higher resolution, we need to use microscopes that utilize specific techniques such as electron microscopy or super-resolution microscopy. These techniques allow us to see smaller structures and details within a cell that are not visible with a conventional light microscope.

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Which human populations have the highest levels of genetic variation?

Answers

The human population which have the highest levels of genetic variation is referred to as Africans.

What is Genetic variation?

This is referred to as the difference in DNA among individuals or the differences between populations and the sources of genetic variation include mutation and genetic recombination.

Nearly all genetic studies indicate greater diversity in African populations  which is consistent with an African origin of modern humans and is also due to Africans being the most genetically diverse people in the world.

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which structure is highlighted? a model of an ovary is shown. an cloud-like structure without the inner content is highlighted.which structure is highlighted? oocyte corpus albicans graafian follicle corpus luteum

Answers

The female reproductive structure highlighted in the given image: (4) corpus luteum.

Female reproductive system majorly comprises of a pair of ovaries, a uterus, fallopian tubes, cervix and vagina. The fallopian tubes connect the ovaries to the uterus while the cervix connects the uterus to the vagina.

Corpus luteum is a temporary endocrine organ present in the female body during their menstrual age. The gland is responsible for the synthesis of hormone progesterone and is very crucial after the ovulation, during the luteal phase. Corpus luteum is a yellow colored simple mass of cells like structure synthesized by the ovaries.

The given question is incomplete, the complete question is:

Which structure of the female reproductive system is highlighted in the given image?

oocyte corpus albicans graafian follicle corpus luteum

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A student wants to know if a Kangaroo rat (Diapodomys compactus) and a Kangaroo (Macropus osphranter) have the same genus. Based on the provided names, what can the student conclude about the organisms and relation to the genus?





this is science btw help!!

Answers

Since the genus is different for the two organisms (Diapodomys and Macropus), they are not in the same genus and are not closely related.

The learner can determine that the Kangaroo rat (Diapodomys compactus) and the Kangaroo (Macropus osphranter) do not belong to the same genus based on the stated scientific names.

The genus and the species make up the two sections of an organism's scientific name. The scientific name's first component, genus, is used to classify species that are closely related to one another. The second component of a scientific name, species, is used to identify an organism's distinctive traits. The genus and species names for the kangaroo rat (Diapodomys compactus) are Diapodomys and compactus, respectively. The genus and species names for the kangaroo (Macropus osphranter) are Macropus and osphranter, respectively.

The two creatures (Diapodomys and Macropus) are not in the same genus and are not closely related because of this.

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according to the endosymbiosis theory, what are the origins of the inner and outer membranes of mitochondria?

Answers

Both the inner and outer membranes are derived from the host cell that engulfed the bacterium.

The dominant evolutionary explanation for the formation of eukaryotic cells from prokaryotic creatures is symbiogenesis, often known as endosymbiotic theory or serial endosymbiotic theory.

The idea proposes that eukaryotic cells' mitochondria, plastids like chloroplasts, and perhaps other organelles are descended from prokaryotes that were formerly free-living and more closely related to bacteria than archaea. While chloroplasts are believed to be connected to cyanobacteria, mitochondria appear to be phylogenetically related to Rickettsiales bacteria.

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On the basis of energy requirement, which does NOT belong to the group? a) The Na/k pump. b) Pure water rushing into celery stalks and bulking them up. c) GLUTS moving glucose molecules from the bloodstream into cells. d) Spraying lysol in one room and over time smelling it in a room where is wasn't sprayed.

Answers

Pure water running into celery stalks and bulking them up; spraying Lysol in one room and over time smelling it in a room where is not sprayed.

The correct option is B and D.

Where is the bloodstream located?

It originates from the heart, moves through the ascending aorta of the chest, and then descends into stomach (descending aorta). The aorta, from which the coronary arteries originate, splits into smaller arteries (arterioles) as it moves out from the heart. Blood that has lost oxygen is returned to the heart through veins.

How does the bloodstream work?

Blood arteries in the circulatory system move blood away to and towards the heart. Blood leaves the heart through arteries and returns through veins. Cells get oxygen, nutrition, and hormones through the circulatory system, which also eliminates wastes like carbon dioxide.

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krystyna investigated how a person's pulse rate changes when they exercise. She tested four of her friends. Belinda and Jasmina do a lot of sport. Jade and Mara prefer reading books and playing computer games. Krystyna measured the four girls pulse rates, in beats per minute, when they were relaxing .then she asked them to run up two flights of stairs , and measured their pulse again

Answers

From her investigation, Krystyna concluded that the level of physical activity a person engages in has a significant effect on their pulse rate.

What were the results of the investigation?

After comparing the results, Krystyna found that the pulse rates of Belinda and Jasmina increased significantly when they ran up the two flights of stairs, which indicated that exercise had a strong impact on their heart rate. On the other hand, Jade and Mara's pulse rates only increased slightly, which indicated that exercise had a much lesser impact on their heart rate.

From her investigation, Krystyna concluded that the level of physical activity a person engages in has a significant effect on their pulse rate. Those who exercise regularly tend to have a more rapid increase in pulse rate when they engage in physical activity, whereas those who are less physically active tend to have a more modest increase in pulse rate. These results suggest that regular exercise can help to improve cardiovascular health and increase the body's ability to respond to physical activity.

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what the is harlem Renaissance at the beginning of the year, addison company's assets are $296,000 and its equity is $222,000. during the year, assets increase $80,000 and liabilities increase $59,000. what is the equity at year-end? Which of the following correctly defines essential amino acids?All the amino acids are considered essential because we need them to survive.Amino acids that we cannot find in food sources, so the human body must make them instead.Amino acids that the human body is unable to produce.Amino acids that can be stored by the body for a later time of need.Which is correct^ help! after tsunami , a research into tree zone was that hat is the primary reason why coffee shops are flocking to china? multiple choice financial capital is easier to obtain. labor costs are lower. Please select the characteristics exhibited by most protozoans. Check all that apply Unicellular Cell walls containing cellulose Motile by means of flagella, cilia or pseudopodia Heterotrophic 3 m-300 m size range Contain a nucleus and variety of organelles various psychological factors influence a client's pain and impact how the nurse may help a client in pain during care. which statements most accurately explain how attention paid to pain influences a client's perception of pain? select all that apply. 3. Mr. Jackson could think about his experiment a little differently. How many times should he expect to roll a 4 if he rolls his number cube 30 times? This is called the mean, or expected value. You can find it if you know the number of trials and the probability of success for an individual trial. Use the formula x = np to find the expected value. silas 4-wheeler, inc. has an roe of 18.06 percent, equity multiplier of 1.40, and a profit margin of 15.00 percent. what is the total asset turnover and the capital intensity? PLEASE HELP!! MATH PROBLEM!!please answer and explain A rug is 6 7/8feet long and w feet wide. Which expression does NOT represent the perimeter of the rug in feet? Please someone give me answers of these questions what are the 2 most important abiotic factors in determining the productivity, or amount of life in different areas of the ocean? choose 2: PLEASE ANSWER QUICKLY!!!!My parents ordered some books.My mom ordered 8 books for $19.85.My dad ordered 6 books for $15.00.Who had the better/lower unit price? Help me pleaseeeeeeeee A mole of oxygen (O2) molecules and a mole of carbon dioxide (CO2) molecules at the same temperature and pressure havedifferent volumes.the same number of molecules.the same number of atoms.different average kinetic energy per molecule. Who does Johanna by Jane yelen encounter whenshe comes to the houses at the edgeof the forest? Juhalna encountered Part ACalculate the quantity of heat absorbed by 50 g of water that warms from 30C to 90C.Express your answer in calories.* Q = ___ cal what is the magnitude, in meters per squared second, of the car's average acceleration during the given time period. De acuerdo con el aforismo Los sistemas filosficos difieren los unos de los otros menos en la manera de resolver que en la manera de escamotear los problemas, la principal diferencia entre un sistema filosfico y otro consiste en la manera de