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Viktor [21]
3 years ago
8

Dr. Grey performed an experiment to test how temperature affects activity levels in mice. She put one group of mice in a cold en

vironment and another group of mice in a hot environment.
Everything else about the two environments was the same, including the type and amount of food and water. She allowed the experiment to last for a few generations of mice and tested the activity levels of the different groups.

There was no change in the activity levels of the mice, but she noticed that the mice in the cold environment had much darker, thicker fur than the mice in the hot environment. What scientific question could she ask based on her results?
A.
Does food type have an effect on fur color and thickness in mice?
B.
Which group of mice is the most attractive?
C.
Does temperature have an effect on fur color and thickness in mice?
D.
Do the mice in the cold environment run faster than the mice in the hot environment
Biology
1 answer:
Aleks [24]3 years ago
8 0
C is the answer. And I need more characters
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Which will experience greater acceleration ?
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C

Explanation:

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6 0
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In the family tree below, people with the recessive trait of attached earlobes are shaded gray
serious [3.7K]
<h2><u>Full Question:</u></h2>

In the family tree below, people with the recessive trait of attached earlobes are shaded gray.

What must be true about the person labeled "A"?

A. It is a male with at least one dominant allele.

B. It is a male with two dominant alleles.

C. It is a female with at least one dominant allele.

D. It is a female with two dominant alleles.

<h2><u>Answer:</u></h2>

Its a male with atleast one dominant allele.

Option A.

<h3><u>Explanation:</u></h3>

The gene for the attached earlobe is recessive while the gene for the free earlobes is dominant. In the phylogenetic tree, we can see that both the father and mother aren't having attached earlobes. So both of them are having atleast one dominant allele which makes them have free earlobe.

In the F1 offsprings, one of the female and a male is having free earlobes. So both of them have atleast one dominant allele. The 2nd female is having an attached earlobe. So both the recessive allele have come form one parent each. So both of them are heterozygous.

Thus, the male marked as A atleast have one dominant allele. He can be a homozygous dominant, but the probability is 25%.

8 0
3 years ago
12. When a plant grows on the shade
KATRIN_1 [288]

i dont understand the question

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is the movement of substances due to random thermal molecular motion. is the diffusion constant, representative values of which are found in [link]. Osmosis is the transport of water through a semipermeable membrane from a region of high concentration to a region of low concentration.

Explanation:

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