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KatRina [158]
2 years ago
8

In a controlled experiment, if a researcher wants to examine the effect of a high-calorie diet on an animal's weight, which of t

he two would be the independent variable?
Biology
2 answers:
Mama L [17]2 years ago
5 0

Answer: High calories diet

Explanation:

Independent variable can be defined as the factors which the experimenter can control and the the dependent variable depends on the independent variable.

Here, the experiment is to test the effect of high calorie diet on the animal's weight.

The experiment is to test whether the animals gain weight if supplied with high calorie diet.

So, the independent variable in the experiment is high calorie diet and dependent variable is weight of animal.

butalik [34]2 years ago
3 0
Animals weight is the independent variable
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Define groundwater, and list some anthropogenic (human) sources of groundwater pollution. Why do many scientists consider ground
joja [24]

Explanation:

Groundwater is the freshwater present below the earth's surface. It originates from the rain, ice, melting snow.

Some anthropogenic sources of groundwater pollution are

  • Aluminum.
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Groundwater pollution has more problems than surface water pollution because groundwater is mostly hidden and it is very difficult to view, manage and monitor.

Groundwater holds its contamination and pollutants that cause pollution whereas surface water rinses their contamination and pollutants.

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2 years ago
The polymerase chain reaction relies upon unusual, heat-resistant ________ that were isolated from bacteria living in hot spring
Olin [163]

Answer:

The polymerase chain reaction relies upon unusual, heat-resistant __DNA polymerase molecules______ that were isolated from bacteria living in hot springs.

Explanation:

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2 years ago
The innermost serous membrane covering the heart is the: Group of answer choices synovial layer peritoneum visceral pleura visce
stepan [7]

<u>Answer:</u>

<em>There are innermost serious membranes that cover the heart is Parietal Pericardium.</em>

<u>Explanation:</u>

Heart is <em>covered by pericardium</em> in two sides, inner and outer sides. The inner membrane is parietal pericardium and the outer one is visceral pericardium. Pericardium is made up of <em>fiber tissues</em> that strongly protect the heart from all around.

The<em> main function of pericardium</em> is to protect the heart from any injuries and prevent the infections. The serious pericardium helps in<em> lubricating the heart. </em>

3 0
2 years ago
what were some of the strange and unexpected things that scientists discovered when they analyzed the human genome? (the video)
OlgaM077 [116]

<span>Before the completion of the Human Genome Project, it took few years before the well-known forecasts stated that humans had at least 100,000 genes. But latest Human Genome Project evaluates lowered number to a more timid range of 20,000 to 25,000. It has helped to narrow the range of feasible genes and to separate certain candidates as supplying to particular diseases. Scientists have also re-evaluated past conclusions, such as the idea that genes are self-restrained, detached pieces of DNA with defined character. They now know that some genes that tasks simultaneously can make more than one protein; where in fact the average gene might make three proteins. Also, genes will be visible to grab genetic code from other DNA parts</span>

8 0
2 years ago
Two true-breeding stocks of pea plants are crossed. One parent has red, axial flowers and the other has white, terminal flowers;
kipiarov [429]

Answer:

Answer is 3/16.

Explanation:

If the F1 progeny has red axial flowers this shows us that red and axial genes are dominant. If we say that R is for red dominant gene, r is for white recessive gene.

If we say A is axial dominant gene, a is for terminal recessive gene.

All F1 progeny has AaRr phenotype.

When we cross them, Aa x Aa  can have AA Aa Aa aa

When Rr x Rr crossed, RR Rr Rr rr

The F2 progeny can have white axial flowers by having a and R in the phenotype with the possibility having aa= 1/4 , R in the phenotype , the possibility is 3/4.

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4 0
2 years ago
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