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masha68 [24]
4 years ago
15

Which vessels allows for oxygen movement into the tissues

Biology
2 answers:
krok68 [10]4 years ago
5 0
Capillaries<span> are </span>small<span>, thin </span>blood vessels<span> that connect the </span>arteries<span> and the veins. Their thin walls allow oxygen, nutrients, carbon dioxide and waste products to pass to and from the tissue cells.</span>
neonofarm [45]4 years ago
4 0

Answer: The blood capillaries supply oxygen to the various parts of the body.

Explanation:

The oxygenated blood from the lungs travels to the various parts of the body so that every organ of the body gets oxygen.

Oxygen is required for the cellular respiration of the body as the energy required by the cells is obtained by this process.

The blood capillaries supply oxygenated blood to every organ of the body.

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The energy input into an ecosystem can come from________
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3 years ago
In your own words, explain the difference between physical properties and chemical properties.
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Answer:

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A population of Muscovy ducks contains 13 birds with black masks and 37 birds with red masks. Red masks are the dominant trait.
Semmy [17]

Answer: Black allele has frequency of 0.14.

              Red allele has frequency of 0.86.

             The frequency of heterozygotes is 0.241

Explanation: <em>Hardy-Weinberg model </em>states the frequency of alleles in a population will stay in equilibrium as long as there are external influences. It is also used to determine alleles frequencies using the following equations:

p+q=1

p^{2}+2pq+q^{2}=1

p represents frequency of dominant allele;

q represents frequency of recessive allele;

2pq is frequency of heterozygotes;

For the frequency of red allele, which is dominant, we can use:

p^{2}=\frac{37}{13+37}

p^{2}=\frac{37}{50}

p^{2}=0.74

p=\sqrt{0.74}

p = 0.86

For the black allele:

p+q=1

q=1-p

q=1-0.86

q = 0.14

Frequency of heterozygotes is

2pq = 2(0.86)(0.14)

2pq = 0.241

<u>Frequencies for a population of Muscovy ducks are </u><u>0.86 for red allele, 0.14 for black allele and 0.241 for heterozygote.</u>

5 0
3 years ago
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