Answer:
Human heart rate in normal condition is between 70-100 bpm, but this number increases dramatically for Daphnia (260 bpm). This major difference can indicate chemicals may have different effects on the heart rate of different organisms.
Explanation:
How might you model the relationship between a tomato plant and the hornworm caterpillar? Identify the components of the model, including inputs and outputs.
Answer:
Ok, there are multiple ways of model this, one of the ways can be:
Knowing that a hornworm can strip a tomato plant of its foliage in about two days, we can count the number of hornworms (x, the input) and find the number of plants (y, the output) that they can eat in a day.
So, if a hornworm can eat a plant in two days, then in one day the worm can eat half a plant.
Then:
y = (0.5plants/worm)*x
This says:
The number of plants eaten in one day (y) is equal to half of the number of hornworms
OF course, there are a lot of other ways to model this, for example we can use the time as a variable x, and the number of plants as y.
Knowing that a worm eats a plant in two days:
y = (0.5 plants/day)*x
Now x is the number of days, and y is the number of plants that can be eaten by a single worm
a raccoon may live longer if it only eats vegetables what is the student doing
Incomplete expansion or collapse of part or all of a lung due to mucus, tumor, or a foreign body that blocks the bronchus is called:_________.
Answer:
Atelectasis
Explanation:
Atelectasis is a medical ailment which affects the respiratory system. It is formed as a result of incomplete expansion or collapse of part or all of a lung due to mucus, tumor, or a foreign body that blocks the bronchus.
It is however common with people who are asthmatic other have lung diseases and it is characterized by low fever, breathing difficulty .
An individual with the genotype AaBb produces four different gametes in equal proportions. This is a demonstration of:_____.a. the chromosomal theory of inheritance.
b. Mendel's law of independent assortment.
c. Mendel's principle of segregation.
d. linkage.
Answer: b. Mendel's law of independent assortment.
If short hair (L) is dominant to long hair (l), then what fraction of the offspring produced by a cross of Ll x ll will have long hair
Answer:
The answer is 50%.
Explanation:
If we cross the two genotypes given in the question as Ll and ll, we can see that 50% of the offspring will have Ll as the genotype and the other 50% will have ll as the genotype.
Since L is the dominant gene, all the Ll genotypes will have long hair as a result of the dominant gene.
I hope this answer helps.
Which of the following is true about ischemic stroke? a. Often caused by emboli from the basilar arteries b. Has risk factors that include atherosclerosis c. Can be a result of a hypercoagulable state d. Results from hemorrhage into brain tissue Is associated with acute hypertension
Answer:
b. Has risk factors that include atherosclerosis
Explanation:
Ischemic stroke happens when there are underlying factors such as atherosclerosis. Atherosclerosis is caused by clogging of fat and cholesterol in the blood vessels. The reduction in the flow of blood to the brain is usually as a result of blood clumping together and blocking the blood vessels carrying blood to the brain.
The symptoms of ischemic stroke include dizziness, loss of coordination, headache etc.
Which type of protein will fight disease?
Answer:
Antibodies help you immune system.
Answer:
The answer is B
Explanation:
Some students grew sunflowers in the biology laboratory. After three weeks they measured the height of each plant. The following figure shows the conditions of the experiment:
Answer:
a. The factor changing among groups = The color of the light
b. The independent variable in this experiment = Color of light
c. The quantity measured at the end of the experiment = The height of the plant
d. The dependent variable is the height to which the plants grow
e. The control group is the Plant Group C, because they are subjected to normal light
f. The parts of the experiment kept constant are;
Temp
Humidity
Water Daily
Daily Light Exposure
g. The amount of nutrient available and atmospheric gases
h. The growth rate of plant is dependent on the color of the light in which the plant grows
Explanation:
1. Os ancestrais das cobras possuíam membros, que desapareceram ao longo da evolução do grupo. Marque a alternativa que explica, de acordo com o lamarckismo, a ausência de patas em serpentes: * 1 ponto a. Os ancestrais das cobras adotaram hábitos rastejantes, deixando de utilizar os membros, que atrofiaram e acabaram por desaparecer nesses animais. b. Existiam variações nas características ancestrais das cobras. Os animais que não possuíam membros, foram selecionados pelo ambiente pois favoreceu o hábito rastejante.
Answer:
ced sfhhhbbbbbbbbbbbbbbbbh
Hypothesis statement that includes an independent and dependent variable
Answer:
Best and easiest way is an "If, then" statement.
e.g. If there is no rainfall, then the plants will die.
Explanation:
Mice are offered two different colors of cotton to
make nests with pink and brown. Out of 20 mice, 16
chose pink cotton to build their nests and 4 chose brown
Answer:
1. There is no control group.
2. independent variable is the colors.
3. The dependent variable is how many of each color the mice chose.
Explanation:
Im assuming you were talking about control group, independent, variable, and dependent variables.
Calculate the percentage loss of mass between the sucrose solutions 0.1 mol/dm3and 0.5 mol/dm3. Give your answer to three significant figures
Answer:
The percentage loss in mass between sucrose solutions 0.5 mol/dm³ and 0.1 mol/dm³ is 80.0% loss in mass
Explanation:
The molecular formula of sucrose is C₁₂H₂₂O₁₁
The molecular mass of sucrose is 342.3 g/mol
Therefore;
The mass of sucrose in 0.1 mol/dm³ solution = 0.1 × 342.3 = 34.23 g
The mass of sucrose in 0.5 mol/dm³ solution = 0.5 × 342.3 = 171.5 g
The percentage loss in mass of the sucrose is given as follows;
[tex]Percentage \ loss \ in \ mass = \dfrac{Original \ mass - New \ mass}{Original \ mass } \times 100[/tex]
Therefore;
[tex]Percentage \ loss \ in \ mass = \dfrac{171.5 - 34.23}{171.5} \times 100 = 80.04 \%[/tex]
Which gives, the percentage loss in mass between sucrose solutions 0.1 mol/dm³ and 0.5 mol/dm³ is 80.0% to three significant figures.
What is physical science
Answer:
Physical science can be described as all of the following:
A branch of science (a systematic enterprise that builds and organizes knowledge in the form of testable explanations and predictions about the universe).
A branch of natural science – natural science is a major branch of science that tries to explain and predict nature's phenomena, based on empirical evidence. In natural science, hypotheses must be verified scientifically to be regarded as scientific theory. Validity, accuracy, and social mechanisms ensuring quality control, such as peer review and repeatability of findings, are amongst the criteria and methods used for this purpose. Natural science can be broken into two main branches: life science (for example biology) and physical science. Each of these branches, and all of their sub-branches, are referred to as natural sciences.
Source: https://en.wikipedia.org/wiki/Outline_of_physical_science
Hope this helps ma dude!
why do you suppose that someone invented plastic
Answer: Plastics could protect the natural world from the destructive forces of human need.
Explanation: Plastic allows us to keep water in a bottle like if your going to arizona and you are dying of thrist, then you'll have water in a bottle or as we call "A water bottle". Plastic bags were invented to save the planet, according to the son of Swedish engineer Sten Gustaf Thulin who created them in 1959. The bags were developed as an alternative to paper bags, which were considered bad for the environment because they resulted in forests being chopped down.
Protei
Using what you have learned about carbon bonds
and energy in this lesson what can you say about
the amount of carbon bonds in this food
component compared to the amount of carbon
bonds in the other two food components? Why?
I
RETRY
Answer:
The correct answer would be -
Fat produce greater energy than the carbohydrates and protein.
due to the facts fats and proteins both have carbon bonds
Explanation:
Fat have highest number of carbon bonds in comparison of the amount of the carbon bonds present carbohydrate and protein and similarly protein have greater number of carbon bonds
Digestion of the fats provides the most energy per gram, due to the fact that more carbon bonds to break. Protein as well gives the higher energy per gram if compared to carbohydrates.
Thus, the correct answer is -
Fat produce greater energy than the carbohydrates and protein.
due to the facts fats and proteins both have carbon bonds
Answer:
Fat
Explanation: (answer for second part)
The amount of carbon bonds in fat is much greater than the amount in carbohydrates and proteins. Fats give you the most energy per gram, so there must be more carbon bonds to break, thereby releasing more energy.
"A birth in which the baby is surgically removed from the uterus, rather than traveling through the birth canal, is called"
Answer:
Cesarean section
Explanation:
a surgical operation for delivering a child by cutting through the wall of the mother's abdomen.
3 concepts about carbohydrates?
Answer:
Monosaccharides, disaccharides, and polysaccharides. Polysaccharides, also called complex carbohydrates, are large non-polar molecules, and they are not hydrophilic.
animal need ______ in order to build down or breakdown materials. A. Energy B. DNA
Answer:
b
Explanation:
animals need energy to survive basically to breakdown materials too
Answer: A. Energy
Explanation:
animal need Energy in order to build or breakdown materials
DNA is the central core of the animal body, but it is not helping build or breakdown, it is just the genetic information of animals
Hope this helps!! :)
Please let me know if you have any question
The evolution from vesicles to true cells was best facilitated by the development of (2 points) a membrane separating the cell from its environment organic molecules:______.
a. such as carbohydrates and lipids self-replicating molecules,
b. such as RNA and DNA inorganic molecules,
c. such as nitrogen and oxygen
Answer:
b. such as RNA and DNA
Explanation:
DNA and RNA represent essential molecules present in all organisms. These nucleic acids (DNA and RNA) are composed of large chains of nucleotides that function to synthesize proteins required for cellular processes and to produce cell structures. Both RNA and DNA are highly stable biomolecules capable of storing and transmitting genetic information, which has been a requisite for the evolution of modern cells. Moreover, it is important to note that DNA is a double-stranded molecule and therefore it is more stable than single-stranded RNA.
Answer:
self replicating molecules, such as RNA and DNA
Explanation:
Consider that RR is red (dominant) and WW is white (dominant) plant phenotypes. The offspring of a cross between an RR plant and a WW plant would be pink and white. all pink. all white. red and pink.
Answer:
A, all Pink
Explanation:
Consider that RR is red (dominant) and WW is white (dominant) plant phenotypes. The offspring of a cross between an RR plant and a WW plant would be pink and white. Then the offspring would be pink.
What is dominant plant?Key species that shape how an ecosystem functions are called dominants. Typically, aboveground characteristics are used to evaluate plant dominance.
Individual species, on the other hand, might not scale proportionally belowground compared to aboveground. This is crucial in ecosystems like grassy and shrubby biomes, where the majority of biomass is distributed below ground.
Dominant species are important organisms that influence how an environment works. Typically, plant dominance is assessed using aboveground traits. Individual species may not scale proportionally belowground compared to aboveground, on the other hand.
Therefore, Consider that RR is red (dominant) and WW is white (dominant) plant phenotypes. The offspring of a cross between an RR plant and a WW plant would be pink and white. Then the offspring would be pink.
To learn more about dominant species, refer to the link:
https://brainly.com/question/13146757
#SPJ2
What is a chromosome?
A. A strand of DNA
B. A virus that attacks cells
C. A protein used by cells
D. A type of allele
Answer:
A strand of genetic material ... is also A.P.EX approved
DNA stores the genetic code, chromosomes are thread-like structures, and sister chromatids are two halves of chromosomes and a strand of DNA. Thus, option A is correct.
What is chromosome?The genetic code is stored in every cell of your body in the form of deoxyribonucleic acid (DNA). It makes your body's instruction manual. The DNA molecule is packaged into thread-like structures called chromosomes in each cell's nucleus.
The term "homologous chromosome" refers to chromosomes that share the same genetic foundation but may also have variants caused by replication. The two halves of a given chromosome that are held together at the centromere are called sister chromatids.
After the cell has gone through the process of DNA replication in order to get ready for cell division, chromosomes are known as "replication chromosomes" emerge.
Therefore, DNA stores the genetic code, chromosomes are thread-like structures, and sister chromatids are two halves of chromosomes and a strand of DNA. Thus, option A is correct.
Learn more about chromosome on:
https://brainly.com/question/29514935
#SPJ5
A student records the sexes and the breeds of dogs in an animal shelter. What kind of data is the student recording?
Answer:
Qualitative Data
Explanation:
Quantitative Data refers to data that can be recorded by numbers and Qualitative data is obersvational and non-numerical
Qualitative for Apex
If bears find insects after they move decaying logs, they more frequently move decaying logs. This most clearly indicates that finding insects is a
Answer:
Reinforcement
Explanation:
Reinforcement can be referred to as anything that can be used to increase, enhance or strengthen a desirable behavior in a person or an organism. Reinforcement is of two types, they include positive reinforcement and negative reinforcement. Positive reinforcement has to do with adding a reward in order to enhance a desirable behavior, while negative reinforcement has to do with removing an undesirable thing in order to strengthen a desirable behavior.
From the question asked, because the presence of insects after moving the decaying logs increased the frequency at which the bears moved the decaying logs, the finding of the insects is, therefore, a reinforcement. The finding of the enhanced or strengthened the desirable behavior.
Anyone answer it The flow of materials in different tropic levels of ecosystem is Unidirectional Bidirectional Multidirectional.
Answer:
unidirectional is ur answer mate
hope it helps u
Answer:
unidirectional
Explanation:
.................................
A chemical reaction produces solid sulfur as a product. Which unit should be used to describe the mass of the sulfur produced? milliliters grams kilometers kelvin
1st part: B, Grams
2nd part: A, Liters
A chemical change produces solid sulfur as a product and solids are measured in units of grams.
What is a chemical change?
Chemical changes are defined as changes which occur when a substance combines with another substance to form a new substance.Alternatively, when a substance breaks down or decomposes to give new substances it is also considered to be a chemical change.
There are several characteristics of chemical changes like change in color, change in state , change in odor and change in composition . During chemical change there is also formation of precipitate an insoluble mass of substance or even evolution of gases.
There are three types of chemical changes:
1) inorganic changes
2)organic changes
3) biochemical changes
During chemical changes atoms are rearranged and changes are accompanied by an energy change as new substances are formed.
Learn more about chemical change,here:
https://brainly.com/question/23693316
#SPJ2
During strenuous exercise, Max's body produces lactic acid and his blood pH begins to decline. His kidneys go to work to preserve acid-base balance by doing all of the following EXCEPT __________.
a. reabsorbing bicarbonate
b. generating new bicarbonate
c. reabsorbing hydrogen
d. secreting hydrogen
Answer:
c. reabsorbing hydrogen
Explanation:
In this scenario, the individual's kidneys will do all of the following except for reabsorbing hyrdogen. This is because, in a scenario like this where the body pH levels decline the kidneys begin to secrete hydrogen, they do not reabsorb it. It is this process of acid elimination that ultimately causes the body's pH levels to begin rising and restoring themselves to normal. Therefore the answer to this question is c.
The wild type of allele for a gene has more pairs than the mutated form of allele what type of mutation A. a base pare of deletion B. base pair substitution C. base pair seperation D. base pair insertion
Answer:
A. a base pare of deletion
Explanation:
A base pair deletion is a mutation where one nucleotide is removed during DNA replication. The base-pair deletions produce frameshift mutations, i.e., they cause genetic modifications that alter the Open Reading Frame (ORF) of the corresponding protein. Examples of human diseases caused by deletion mutations include, among others, cystic fibrosis and Williams syndrome.
what effect has breast cancer researcher had on society
Answer:
People who have gene mutations have more treatment options.
Explanation:
When you decide whether or not the data supports the original hypothesis, you are.... asking questions asking questions forming a hypothesis forming a hypothesis making observations making observations drawing conclusions
Answer:
drawing conclusions
Explanation:
When a scientist decides if the data collected during an experiment supports the original hypothesis, such a scientist is trying to draw a conclusion from the experiment.
The drawing of conclusion represents one of the significant steps in the scientific method. After observations have been made and hypothesis formulated, the next step is to test the hypothesis through experimentation. Experimentation involves gathering data and at the end of the day, the data are analyzed to see if it conforms with the hypothesis or otherwise.
If the data conforms with the original hypothesis, the hypothesis is accepted as being true, and if otherwise, such a hypothesis is subjected to further testing instead of being accepted.
how do I explain science in my own words
Answer:
you can say science is more important for my life