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Dmitry_Shevchenko [17]
3 years ago
10

In a controlled experiment, the variable that is changed to test the hypothesis is called the:

Biology
1 answer:
Anni [7]3 years ago
6 0

The variable that is intentionally manipulated or changed in a controlled experiment is know as the B) Independent Variable.

This is done, as the question states, to test the hypothesis. In other words, it is changed in order to see what results are produced, then the results are analyzed, and ideally an explanation of the changing results will arise and progress can be made in the experiment.

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A disease kills half the populations of both seals and bears. If all other factors in the environment remain the same, how are t
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They’ll both decrease over time
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The ability of a person's cardiovascular system to compensate for blood loss is most related to?
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The ability of a person's cardiovascular system to compensate for blood loss is most related to how rapidly he or she bleeds.

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7 0
2 years ago
DNA is made up of:
Step2247 [10]
I would go with the second one cuz

DNA<span> and RNA </span>consists<span> of nucleic acid </span>chains<span> called nucleotides. Nucleotides are </span>composed<span> of three units: base, sugar (monosaccharide) and phosphate. Bases are found in both </span>DNA<span> and RNA. </span>
4 0
3 years ago
Read 2 more answers
one gene in a population of snails determines whether they are poisonous. being poisonous (P) is dominant over not being poisono
Harlamova29_29 [7]

Answer:

F (pp) = 0.04

F (Pp) = 0.32

F (PP) = 0.64

Explanation:

Studying population genetics, we used the Hardy-Weinberg equilibrium model. In the case of snails, the H-W principle predicts that the total number of cases in the population should follow the following equation: PP + 2.Pp + pp = 200.

If a population has 200 snails and 8 are affected by a recessive condition, we have 4% affected, or 0.04.

This means that 0.04 corresponds to p², and p corresponds to 0.2.

Therefore, P is equal to 0.8 because p + P = 1.

Knowing the allele frequencies, we go to the frequency of the genotypes.

F (pp) = p² = 0.04 = 8 snails

F (Pp) = 2.Pp = 0.32 = 64 snails

F (PP) = P² = 0.64 = 128 snails

7 0
3 years ago
Which of these can be used as fuel, garden mulch, and packing material?
kramer

Answer: peat moss

Explanation:

8 0
2 years ago
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