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Ulleksa [173]
3 years ago
11

Crossing-over helps meiosis increase genetic diversity. On what structures does crossing-over occur and how does it increase div

ersity ?
Biology
1 answer:
solmaris [256]3 years ago
6 0

Explanation:

crossing over is the exchange of chromosome segment between non sister chromatids in meiosis full stop crossing over create new combination of gene in the gamates that are not found in either parent contributing to genetic diversity.

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Which term is correct for one female arctic fox? biome species ecosystem organism
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Answer:

D.) Organism

Explanation:

On the basis of biological organization, one  female arctic fox will be considered as an organism.

Biological organization refers to a hierarchy starts from simplest biological structure to complex biological structures that define life, such as from atoms to biosphere.

So, biome is the community of animals and plants having common characteristics according to the environment; species is also a group of living organism sharing similar genes; ecosystem include different groups with the physical (abiotic) environment and organism is the basic living system,that include at least one cell.

So, one female arctic fox will be termed as an organism and the correct option is D.

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The ________ nervous system innervates the intestinal mucosa and may stimulate the secretion of intestinal enzymes.
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A student measured the mass and volume of a metal sample using a triple beam balance and a graduated cylinder. The sample has a
alexdok [17]

Answer:

d=3.79\ g/cm^3

Explanation:

Given that,

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Substituting all the values,

d=\dfrac{16.7\ g}{4.4\ cm^3}\\\\=3.79\ g/cm^3

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