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postnew [5]
2 years ago
14

Why is active transport necessary for cells?

Biology
2 answers:
jeyben [28]2 years ago
7 0

Answer:

c

Explanation:

Natalija [7]2 years ago
6 0

Answer:

C. Sometimes molecules need to move from low to high concentrations.

Explanation:

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Which statement best explains how crossing over increases the genetic diversity of sexually reproducing organisms?
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Answer is: <span>A. During crossing over, genetic information is exchanged between two homologous chromosomes.
</span>Crossing over results in recombinant chromosomes<span> during </span>sexual reproduction, <span>increases the genetic diversity of sexually reproducing organisms.
</span><span>In crossing over matching regions on matching chromosomes break and then reconnect to the other chromosome.</span>
4 0
3 years ago
What is the correct order of genetic material from smallest to largest?
Ede4ka [16]

Answer: allele, gene, DNA, chromosome, nucleus

Explanation: An allele is a variant of a gene or a different form of a gene. A gene is a segment of a DNA that codes for an RNA or a protein. A DNA is a genetic material that contains all the genetic information of an organism. A DNA is packaged and condensed into a threadlike material known as chromosome and chromosomes are found in the nucleus of a cell.

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<span>ctabolism is the process in which complex molecules are broken down into simple ones.</span>
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astra-53 [7]

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D, Cholera and Dysentery

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What happens right before RNA polymerase begins to work?
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