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Vilka [71]
3 years ago
7

Why is the SA node called the pacemaker of the heart?

Biology
1 answer:
defon3 years ago
6 0
It sends electrical impulses that cause the muscles of the heart to contract. It literally sets the rate of contractions, or in other words it controls the pace
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Why does fission occur with appotamy
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Punnet squares can be used to depict crosses involving two factors also called
IrinaVladis [17]

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Dihybrid cross

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The punnet square is often used to solve problems involving two factors which are known as a dihybrid cross.

  • Also, the punnet square is used for a single factor and this is known as a monohybrid cross.
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3 0
3 years ago
Which of the following statements best describes a benefit of sexual reproduction?
Ivan

Among the listed options, we can conclude that option C which states that "<em>It results in the </em><em>diversity </em><em>of the </em><em>species</em><em> that enhances the probability of </em><em>survival</em><em>.</em>" is correct.

Sexual reproduction offers organisms an advantage over those who undergo Asexual reproduction. Though there are benefits and drawbacks to each method, Sexual reproduction is a method that is <u>better adapted to a changing environment and promotes the faster </u><u>evolution </u><u>of a </u><u>species</u><u>.</u>

The main benefit of sexual reproduction is that it allows for a<u> </u><u>greater diversity </u><u>of the </u><u>species</u><u> which enhances the probability of </u><u>survival</u><u>.</u> This is due to the fact that sexual reproduction leads to varying combinations of alleles for specific traits, which coupled with selective reproduction (<em>the ability of a member of the species to choose a spouse with desirable traits</em>) <u>leads to </u><u>offspring </u><u>who over time are increasingly better </u><u>adapted </u><u>to life in the given </u><u>environment</u><u>, with specific traits tailored for </u><u>survival</u><u>.</u>

To learn more visit:

brainly.com/question/2983646?referrer=searchResults

7 0
2 years ago
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