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7nadin3 [17]
3 years ago
8

When a hot surface is touched, receptors in the hand send a signal to the nervous system. The nervous system then sends a signal

to the muscles in the arm to contract and move the hand from the hot surface. Which of these best describes this example?
Biology
1 answer:
bearhunter [10]3 years ago
5 0

a behavioral response requires coordination and communication between different parts of the body.

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2. Codominance: Diricrawls are plump, fluffy-feathered, flightless birds. Feather color
mixer [17]

Answer:

The correct answer is - 50% or 1/2.

Explanation:

In codominance both alleles express their traits and blend to make new traits, there is no dominance or recessive pattern found. In this question, there is FF have pink feathers, PP has purple feathers and mottled diriclaws (FP). Then a cross between pink feathers and mottled diriclaws would produce offspring:

    F     F

F  FF  FF

P  FP  FP

Here two out of four have pink feathers. That is 50%

4 0
3 years ago
In the term 2pq of the Hardy-Weinberg equation. Why is the multiplication by two necessary?
Gnesinka [82]

Answer:

The correct answer is : option B.

Explanation:

Hardy–Weinberg equilibrium is a mathematical model that states that genotype percentage or frequency in a population and allele in a population remains stable or constant to generations if there are no evolutionary influences present.

Hardy Weinberg equation is :

            P²+2pq+q² = 1

Here, p² represents the frequency of genotypes dominant homozygotes (AA) in a population in equilibrium. The term 2pq represents the frequency of heterozygotes (Aa)  as there are two ways of developing heterozygous individuals either dominant from the egg and recessive from sperm or vice versa. and the term q² represents the frequency of recessive homozygotes (aa).  

Thus, the correct answer is : option B.

3 0
2 years ago
If energy is needed to remove a phosphate group from a chain in ATP, you can conclude that the energy needed for production must
sveta [45]

THE ANSWER IS  the last one.    

less then amount of energy

3 0
3 years ago
Read 2 more answers
Which is a way for the body to conserve water during periods of heavy sweating?
Diano4ka-milaya [45]
It can filter less water out of the blood.!
4 0
2 years ago
Identify a probable reason that the dark moths survived while the light moths did not.
kirill [66]

Answer:

This question has little context, but I understand what you are trying to say.

The reason why dark moths survived while light moths weren't able to survive is due to the dark moths having conditions that allowed them to camouflage better than the light moths. An environmental condition that would allow this would be the dark moths and the light moths living in the same dark environment.

Explanation:

7 0
3 years ago
Read 2 more answers
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