2 years ago

Explain why a circulatory system is important in meeting the needs of all cells throughout an animal's body

1 answer:

6 0

The circulatory system moves oxygenated blood to all parts of the body. Without oxygen being carried to cells they would die thus causing the animal to die.

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Carbohydrates, lipids, and nucleic acids
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2 years ago

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miv72 [106K]

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6 could be true.

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3 years ago

DNA within the cell is wrapped around nucleosomes to form chromatin. When chromatin is in the form of a 30 nm fibril, how many c

vodomira [7]

Answer:

The correct answer is option b. "20 H1, 40 H2A".

Explanation:

Chromatin is a complex that protects and condenses the genetic material comprised of DNA and proteins. When chromatin is in the form of a 30 nm fibril, nucleosomes have a regular positioning along the DNA. This means that each nucleosome is associated with a single H1 molecule. Therefore a chromatin containing 20 nucleosomes will have 20 copies of H1 and 40 copies of H2A, because each nucleosome has 2 copies of the core histone H2A.

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2 years ago

There are two alleles, B and b, at a gene locus in a population at Hardy-Weinberg equilibrium. The relative frequency of the dom

viva [34]

Answer:

210

Explanation:

Frequency of dominant allele is represented by "p"

and frequency of recessive allele is represented by "q"

Given

$p = 0.7$