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MAVERICK [17]
2 years ago
8

What are the 3 conditions needed for natural selection?

Biology
1 answer:
Sphinxa [80]2 years ago
6 0

Answer:

highlighted in bold above, are a struggle for existence, variation and inheritance

Explanation:

i hope this helps

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D) damming rivers. Hope this helps
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To prevent back injury, the nurse should instruct the client to
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8 0
3 years ago
Which of these observations illustrate regional specialization in the human nervous system?
Savatey [412]
<h2>Regional specialization of  Human Nervous System</h2>

Explanation:

The statements that illustrate the regional specialization of human nervous system are-

a. Sensory information may be processed in the occipital lobe or the temporal lobe.

c. Reading a printed word out loud and then thinking of a related word involves the visual cortex, Broca’s area, and the frontal and temporal lobes.

Humans have the most developed nervous system among all the living organisms. Various parts  of the nervous system has been specialized  for various function. The human brain has been divided into different parts like cerebellum, cerebrum , medulla oblongata etc which are further divided into specialized parts. Each part is specialized to carry out particular function. Moreover, the nervous system has different types of neurons like motor neuron, sensory neurons and interneurons. Each type of neuron has specialized function.

8 0
3 years ago
In a population of plants, the allele for long stems (S) is completely dominant over the allele for short stems (s). If 35% of t
Sergio [31]

Answer:

The correct answer would be 48 percent.

It can be solved by using the Hardy-Weinberg equation.

p² +  2pq+ q²  = 1

p + q = 1

where, p² represents homozygous dominant's frequency that is, SS in this case,

q² represents homozygous recessive's frequency that is, ss in this case,

2pq represents heterozygous dominant's frequency that is, Ss in this case.

p represents dominant allele's frequency and q represents the recessive allele's frequency.

Now, the percentage of homozygous recessive or short stems is 35%. Therefore, the frequency of homozygous recessive would be 0.35.

Thus, the value of q² = 0.35

So, q = \sqrt{0.35} = 0.59 which is approximately equals to 0.6.

As p + q = 1 so, q = 1 - 0.6 = 0.4

The frequency of heterozygous (Ss) = 2pq = 2(0.6)(0.4) = 0.48

Hence, the frequency of heterozygous would be 48 percent.

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3 years ago
Which of the following happens during interphase?
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During interphase, cell growth occurs

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3 years ago
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