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sergiy2304 [10]
2 years ago
9

Question 21

Biology
1 answer:
Nonamiya [84]2 years ago
7 0

Answer:

B

Explanation:

Hope this helps! Have a great rest of your day! ;)

(Also mark as brainliest please)

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What are the two theories that are combined in the synthetic theory of evolution?
Alika [10]

The Modern Synthetic Theory of Evolution combines the Darwinian theory of evolution with Mendel's genetic theory.

<h3>Synthetic theory of Evolution </h3>

  • The synthetic theory of evolution states that evolution are the changes occurring in the allele frequencies within the populations.

The theory explains that changes in the genes of organism are what causes the evolution of organism.

The Darwinian theory of Evolution states that organisms better adapted to their environment survive and give birth to offspring suited for their environment.

The Mendelian theory of genetics states that the combination and resassortment of genes are responsiblefor character inheritance.

Therefore, the Modern Synthetic Theory of Evolution combines the Darwinian theory of evolution with Mendel's genetic theory.

Learn more about synthetic theory of evolution at: brainly.com/question/3287446

4 0
2 years ago
The sympathetic nervous system differs from the parasympathetic nervous system in that _________. a. the sympathetic nervous sys
OverLord2011 [107]

Answer:

One of the functional differences between the sympathetic and parasympathetic nervous system is that in the sympathetic nervous system first stage neurons have synapses a considerable distance from the target organ (Option C).

Explanation:

Sympathetic nervous system is part of the autonomic nervous system, and is responsible for producing the body's activating response, such as increased heart rate, pupil dilation, and increased muscle strength and endurance. The main neurotransmitters of this system are epinephrine (adrenaline) and norepinephrine.

<em>One of the fundamental characteristics of the sympathetic nervous system is its ability to release neurotransmitters even when they are far from the receptors, while the nerve ganglia of the </em><em>parasympathetic nervous system</em><em> must be close to the target organs.</em>

Learn more:

Autonomic nervous system control brainly.com/question/6820873

5 0
3 years ago
What kind of bones do birds have?<br> A. hollow<br> B. narrow<br> C. thin<br> D. cartilage
Sunny_sXe [5.5K]
Hollow, that's why birds can fly. There is nothing in the bone to weigh them down.
6 0
3 years ago
What role do hormones play in dna replication​
Yakvenalex [24]
The human male and female reproductive cycles are controlled by the interaction of hormones from the hypothalamus and anterior pituitary with hormones from reproductive tissues and organs.
3 0
3 years ago
If a mother is homozygous for curly hair and the father is homozygous for straight hair, what percentage of the offspring will e
makvit [3.9K]

Answer:

<h2><u>The correct answer is "D" 100 percent</u></h2>

Explanation:

If the allele for curly hair is incompletely dominant and a mother is homozygous for curly hair and the father is homozygous for straight hair, the percentage of the offspring that will exhibit characteristics of both parents is 100%. 

Hope this help

plz mark brainliest

Have a nice day!!!!!

5 0
3 years ago
Read 2 more answers
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