Explanation:
Reducing the activation energy can increase the rate of a reaction is the correct answer. Explanation: The relationship between the activation energy and the rate of reaction is that if activation energy is lower than reaction will be fast.
The highest energy waves have the_______ wavelength
Answer:
The highest energy waves have the shortest wavelength.
the highest energy wave is gamma rays and it has wavelength is of less than 100 pm
Answer:
The highest energy waves have the shorter wavelength
Explanation:
Wavelength :
The wavelength of a waveform signal conveyed in space or along a wire is the distance between identical points (adjacent crests) in adjacent cycles.
λ=ν/f
where, f = frequency
E = hc/λ
Energy is inversely proptional to wavelength.
Hence, The highest energy waves have the shorter wavelength.
Example - Gamma rays has highest energy and shorter wavelength.
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Your instructor gives you an unknown organ for you to examine and identify through microscopy. What should you do first with the sample?
a) cut it into sections
b) examine it for artifacts
c) fix it with preservative
d) stain it to enhance contrast
If a pendulum makes exactly 60 oscillations in 15 seconds, then
its period is
Answer:
=60÷15
=4 oscillations
Answer:
[tex]\Huge \boxed{\mathrm{0.25 \ s}}[/tex]
Explanation:
[tex]\sf \displaystyle time \ period = \frac{time \ taken}{number \ of \ oscillations }[/tex]
[tex]\displaystyle \frac{15}{60 }=\frac{1}{4} =0.25[/tex]
Which structures in the cell membrane allow the cell to communicate with and interact with its environment?
A. Phospholipids
B. Cholesterols
C. Proteins
D. Carbohydrates
Within the solar systme can you name two places might be able to form and survive in extraterestrial environments.
Answer:
well most strong candidates for all of the good satellite habitability were all icy satellites and Jupiter and Saturn—Europa and Enceladus , though if life dose exists in either place then they would probably be confined to there subsurface habitats.
So can I have help with this questions also the question I posted..
Exfoliation is a form of mechanical weathering in which curved plates of rock are stripped from rock below.
This results in exfoliation domes or dome-like hills and rounded boulders.So your answer is D, Exfoliation.
what is sequence of steps in photosynthesis how is it different in desert plants and those in temperate regions
Answer:
The steps of photosynthesis are mostly the same for both the plants of desert and temperate regions. The only difference is that desert plants take up carbon dioxide at night and store it as an organic acid inside the body.
Explanation:
What is natural selection and how does it lead to diversity in organisms?
Answer:Natural selection is the process through which populations of living organisms adapt and change
Explanation: Individuals in a population are naturally variable, meaning that they are all different in some ways. This variation means that some individuals have traits better suited to the environment than others
The rate of heat production is increased by increasing muscle contraction by movement is: Shivering thermogenesis Non- Shivering thermogenesis Vasoconstriction Vasodilation
Answer:
Shivering thermogenesis.
Explanation:
The rate of heat production is increased by increasing muscle contraction by movement is shivering thermogenesis because nerve impulses are transmitted to the skeletal muscles by the hypothalamus which will result to contractions that will produce heat.
Shivering thermogenesis is Contraction-mediated heat production High intensity shivering activates large muscles and produce more glycolysis which is then use as the main source for heat production
Please help me with this
Answer:
[tex]\large \boxed{\mathrm{view \ explanation}}[/tex]
Explanation:
When we exhale, carbon dioxide is released.
The carbon dioxide reacts with the limewater, it turns the limewater to a cloudy or milky solution.
The reason for this is because of the suspended Calcium carbonate in the limewater.
Which type of protein will fight disease?
insulin
O antibodies
ligaments
genes
Answer:
antibodies
Explanation:
as antibodies are the part of immune system that fight against diseases and protect our body
while insulin is enzyme which speed the chemical reaction without affecting itself it does not fight against disease
and genes are involve in the inheritance not in the immunity so
correct answer is antibodies which produce immunity
The proteins that help to fight against diseases are ANTIBODIES.
The antibodies are specific proteins of the immune system that recognize harmful particles called antigens in order to destroy them.The antigens can be localized on the surface of pathogenic harmful microorganisms (i.e., bacteria, fungi, parasites, viruses).Antibodies are secreted into the bloodstream by differentiated B cells, which are specific cells of the adaptive immune system known as plasma cells.In conclusion, the proteins that help to fight against diseases are ANTIBODIES.
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Why is small intestine in herbivores longer than in carnivores ?
Answer:
that is because digestion of cellulose takes quite a long time.
Having a long small intestine helps ensures that the food stays inside the body for a long time, enough for having properly digested the cellulose.
Answer:
cellulose forms the largest part of the herbivore's
food . Digestion of cellulose takes longer time, by the ruminant bacteria that live in the gut of the herbivores. long length of small intestine ensure that the food stays for a longer duration and proper digestion is possible . In case of carnivores , cellulose is not present in the diet ,thus the length of small intestine is smaller
hope it helps u.
Compare the energy values of a carbohydrate molecule versus a fat molecule.
Answer:
A fat molecule is stored with a lot of energy where as a carbohydrate molecule is a long chain of carbon atoms.
Carbohydrates and fats are nutrients which provide energy to the body and since calories(kilocalorie) tell how much energy a molecule of a nutrient contain, We can compare their energy values by first changing to kilocalorie.
Now, 1 gram of Carbohydrates contain 4 kilo calories while 1 gram of fat contains 9 kilo calorie of energy.
Let us consider a piece of bread containing
20g of carbohydrate molecule and
14g of fat molecule.
We will see that
carbohydrate will have 20 x 4 =80kcal and
fat will have 14 x 9=126kcal
Even with the carbohydrate having more mass than Fat, Fat ended up havng more energy value than it.See here for related answer: https://brainly.com/question/2006114
Can any kind soul help me ASAP
Answer:
1- D transpiration
2- A
✅diffusion and osmosis don't require energy from a cell, it is needed in active transport.
✅a partially permeable membrane is present in osmosis but is not necessarily needed in diffusion.
❌diffusion and osmosis always happens from an area of higher concentration to an area of lower concentration.
3- B
red blood cells have lower water concentration than the solution of water, so water will diffuse into the cells ✅
from higher water potential to lower water potential ✅
and the cells will burst as a result.
A scientist is studying the effects of growing human populations on the biodiversity that can be found in a region. Each region selected had a different population density of humans from 1 to 10 million per 10 square miles. Then in each region the number of different species that can be found was recorded. What type of variable is the dependent variable in this experiment?
Answer:
The different species
Explanation:
There are two types of variable in a scientific experiment; Dependent and Independent variable.
An Independent variable is the variable that is intentionally or expectedly altered in order to see the effect on the dependent variable.
A dependent variable is the variable that is been observed for changes as a result of the independent variable.
For example, in the relationship between age and blood pressure, age is the independent variable while blood pressure is the dependent variable.
From the question, the different human populations is the independent variable (because it is the one been intentionally altered) while the biodiversity/different species is the dependent variable (because it is been observed for changes as a result of the different human population).
A preparation that "teaches" the immune system to recognize a disease-causing agent without actually causing disease is termed a(n):__________.
A. antibiotic.
B. virus.
C. antiviral.
D. vaccination.
E. injection.
Answer:
c. Vaccination
Answer:
D. Vaccination.
Explanation:
Vaccination is a preparation that teaches the immune system to recognise a disease-causing agent without actually causing disease is termed a vaccination.
For example:
The coronavirus vaccine won't expose us to the coronavirus yet the it helps the immune system prepare to fight the virus in advance just in case the person gets infected with the disease.
Hope this helps ;) ❤❤❤
GgTt pea plants can produce _____ type(s) of gametes, but a ggtt plant can produce _____ type(s) of gametes.
Answer:
4; 2
Explanation:
GgTt can produce GT, Gt, gT, or gt gametes while ggtt can only produce gt gametes.
Jupiter, Saturn, Uranus, and Neptune are made up by what gases?
Answer:
hydrogen and helium
Explanation:
Jupiter, Saturn, Uranus, and Neptune are made up hydrogen and helium gases and called gas giants of solar system.
Uranus and Neptune also consist of more ices and methane in comparison to Jupiter and Saturn.
Jupiter is the largest planet in the solar system and also have rings around it consist of rocks.
Hence, the correct answer is hydrogen and helium.
A mating between a true-breeding purple-flowered pea plant and a true-breeding white-flowered pea plant would produce a:______.A) True-breeding variety.B) Inbred organism.C) F1 generation.D) P generation.E) F2generation.
Answer:
The correct answer would be - option C) F1 generation
Explanation:
The true breeding varieties are the offspring that have same phenotype as the the parents and contain same allele for a specific trait. When there is mating between two true breeding varieties offspring would be hybrid.
P generations is the generation of the parents in other words, matting in between parents known as p generation whereas the very first generation after p generation is known as F1 generation or filial generation and also the hybrid of P generation.
Thus, the correct answer is option C). F1 generation
In the carbon cycle, carbon dioxide and water are converted to glucose and oxygen by ________. Group of answer choices
Answer:
Photosynthesis
Explanation:
In photosynthesis, solar energy is harvested as chemical energy in a process that converts water and carbon dioxide to glucose. Oxygen is released as a byproduct. In cellular respiration, oxygen is used to break down glucose, releasing chemical energy and heat in the process.
The zebra mussel is a highly invasive species that was accidentally introduced to the Great Lakes region of the United States in the 1980s. The map below shows the distribution of zebra mussels in 2010. • Zebra mussel location What is the primary reason the large-scale spread of zebra mussels concerns scientists? Zebra mussels out-compete native mussel species. © Zebra mussels are a freshwater species. Zebra mussels are a desired food for humans. Zebra mussels are eaten by some fish and birds.
Answer:
Although the map showing the distribution of mussels in not included but the question can be answered based on general understanding of invasive species. The answer is:
Zebra mussels out-compete native mussel species.
Explanation:
Invasive species in biology refers to the species of an organism that is foreign to a particular area/location with an ability to grow very rapidly to the point of being a threat to the local species of organisms that are native to the area.
This is the case of the Zebra mussel, which was accidentally introduced to the Great Lakes region of the United States in the 1980s. It is a major concern for scientists (like every other invasive species) because of its potential to outgrow and outcompete native mussel species i.e mussel species naturally found in the lake.
Answer:
community interaction
Explanation:
One strand of the DNA serves as a direct template for the new strand, and the other strand is pieced together and comprises a new strand. This statement best describes _____.
Answer:
DNA replication is the answer
One strand of DNA serves as a direct template for the new strand, and the other strand is pieced together and comprises the new strand. This statement is related to DNA replication.
What is DNA replication?DNA replication is the process by which genetic materials are copied. In this process, the DNA helix unwinds and each DNA strand opens. Enzymes such as DNA polymerase access the single strand and add complementary bases to the already existing DNA or parental DNA.
The DNA replication takes place from the 5' end to the 3' end. The DNA elongation continues from 5' to 3' taking the 3' to 5' parental template DNA strand. This strand is called a "leading strand," as the newly synthesized DNA is formed continuously. The other template DNA strand of parental DNA, with 5' to 3', doesn't elongate continuously in replication. Patches of short DNA are formed. This is called a lagging strand.
Hence, one strand, the leading strand, is formed continuously while the lagging strand is pieced together. This statement best describes DNA replication process.
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Environmental science which of the following is a result of human impact on the nitrogen cycle?
Answer:
Scientists have determined that humans are disrupting the nitrogen cycle by altering the amount of nitrogen that is stored in the biosphere. The chief culprit is fossil fuel combustion, which releases nitric oxides into the air that combine with other elements to form smog and acid rain.
Explanation:
different between larva and egg of silkworm
Answer: a larva is the active immature form of an insect
Explanation:
In this type of transport, a molecule can only pass through a protein channel if it can bind to the channel to change its shape. A. Osmosis B. Key-Mediated Transport C. Channel-Mediated Transport D. Carrier-Mediated Transport
Answer:
Key mediated transport
Explanation:
The molecules across the membrane are transported through active or passive transport. The molecules can pass through protein channels only in the Carrier-Mediated Transport. Thus, option D is correct.
What is Carrier-Mediated Transport?Carrier-Mediated Transport is the active transport that requires energy or other co-transporters to move the molecules across the semi-permeable membrane. The Carrier-Mediated uses the energy-dependent pathway and receptors to transport the molecules.
Carrier-Mediated Transport uses the properties of competition, specificity, and saturation to transport the molecules. The molecule can pass only if they have a specific shape to that of the receptor channel.
Therefore, option D. molecules can pass through protein channels only in the Carrier-Mediated Transport.
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The muscles of a recently deceased human can remain in a contracted state, termed rigor mortis, for several hours, due to the lack of
Answer:
Because of the remaining actin-myosin bonds.
Explanation:
After death, the body can still continue to produce energy as ATP and that ATP interacts with the myosin within the muscles, causing the muscles to remain contracted and tense. This is what causes rigor mortis, the body is unable to break the bonds between actin and myosin.
I hope this answer helps.
Answer: ATP NEEDED TO BREAK ACTIN-MYOSIN BONDS
Explanation: ATP (Adenosine Triphosphate) is the substance that allows energy to flow into the muscles,this energy helps the muscle to contract and work well so without this chemical (ATP), energy can't flow into the muscles and the muscle in-turn cannot function or contract.
When an individual dies,the body stiffens as a result of loss of Adenosine Triphosphate.
The muscles then stays in a contracted state until ATP becomes binded to myosin, thereafter, myosin and actin filaments will be released from one another.
Stained bacteria that lose the purple color when the decolorizer is added and pick up the red color of the safranin are referred to as ________ bacteria.
Which is true for a substance in the gaseous phase?
Answer:
Explanation:
in gaseous phase the molecule of gas are far away from one another
the attractive forces among gas molecules are very weak
the gas molecule occupy the shape of the container in which they are confined
in gaseous phase the molecules are in continous collision with each other and with the walls of container
Suzie Q wants to know the effect of different colors of light on the growth of plants. She believes that plants can survive best in white light. She buys 5 ferns of the same species, which are all approximately the same age and height. She places one in white light, one in blue light, one in green light, one in red light and one in the closet. All of the ferns are planted in Miracle-Grow and given 20 mL of water once a day for 2 weeks. After the two weeks, Suzie observes the plants and makes measurements. Hypothesis: If___________________________________, then ______________________________________ Independent Variable: _____________________________ Dependent Variable: ________________________ Control Group: __________________________________ Constants: ________________________________________________________________________________
This question is about identify
The hypothesis to this question is as follows: If a fern is exposed to white light, then it would grow taller.Independent variable: different colors of light Dependent variable: growth (height) of plants/fernsControl group: plants/ferns placed in the closet (no light)Constants or Control variable: Miracle-Grow, 20ml of water, 2 weeks Hypothesis of an experiment is a testable explanation given to support the experiment. Based on the experiment conducted by Suzie in order to determine the effect of colors of light on plant growth, she is of the belief that plants grow/survive best under white light. Hence, the hypothesis of the experiment will be: if a fern is exposed to white light, then it would grow taller. Independent variable of an experiment refers to the variable that the experimenter controls or manipulates in order to effect a change. In this case, the independent variable is the different colors of light. Dependent variable is the variable that is measured or responds i.e. the outcome. In this case, the growth/height of the plants is the dependent variable. The control group in an experiment is the group that receives no experimental treatment. In this case, the group of ferns placed in the closet/no light are the control groups. Control variable or constants are the variables in an experiment that are unchanged or kept constant throughout the experiment. In this experiment, the constants are miracle-grow, Same amount of water (20ml), same amount of weeks (2 weeks).Learn more about the variables of an experiment at: https://brainly.com/question/3210387?referrer=searchResults
Can any kind soul help me ASAP
Answer:
9- C
cellulose strengthens the cell walls present in a plant
enzymes and antibodies are made of proteins
water is the universal solvent.
10- C, all 3
1- cytoplasm contains about 85% of water, which helps in movement within the cells.
2- urine contains 95% of water, and it dissolve urea and salts in it.
3- plasma contains 90% of water, so we can say that water allows transportation of substances in the blood.