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bogdanovich [222]
3 years ago
9

How does sexual reproduction bring about variation

Biology
1 answer:
Sidana [21]3 years ago
7 0

Answer:

The process of sexual reproduction introduces variation into the species because the alleles that the mother and the father carry are mixed together in the offspring. ... A mate must be found, the egg must be fertilised by sperm, and then the offspring develop.

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The ocean is divided into distinct zones of marine life. Which three factors are
joja [24]

Answer:

Three factors are used.

The availability  of sunlight.

The distance from shore and

The  water depth.

Explanation:

<u>Availability of Sunlight </u>

The photic zone is the upper part of the ocean  into which sunlight penetrates.

<u>Distance from Shore </u>

The intertidal zone is the strip of land where the  land and ocean meet and overlap, or the zone  between high and low tides.

The neritic zone is the marine-life zone that  extends from the low-tide line out to the shelf  break.

The oceanic zone is the marine-life zone  beyond the continental shelf.

<u>Water Depth</u>

The pelagic zone is open zone of any depth.  Animals in this zone swim or float freely.

The benthic zone is the marine-life zone that  includes any sea-bottom surface regardless of  its distance from shore.

The abyssal zone is a subdivision of the benthic  zone characterized by extremely high pressures,  low temperatures, low oxygen, few nutrients,  and no sunlight

6 0
3 years ago
Why are there two copies of each chromosome? Question 5 options: One copy comes from each parent Chromosomes were duplicated in
wariber [46]

Answer:

One copy comes from each parent

Explanation:

The correct answer would be that <u>one copy comes from each parent</u>.

<em>During gamete formation, the chromosome number in the sex cells is usually halved to produce haploid gametes. Haploid gametes fuse together and donate their chromosomes to form a diploid zygote during the fertilization process. Hence, one copy of the two chromosomes in diploid organisms comes from each parent.</em>

8 0
3 years ago
The that deals with fritation of uren is called and its well labelled structure​
Sergeeva-Olga [200]

Osmoregulation

the that deals with fritation of uren

6 0
3 years ago
A man is HH for a trait, while his wife is hh. What will their children
Montano1993 [528]

Explanation:

I hope what I have drawn on the picture will help you understand:)

7 0
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The picture shows a cell model and the solutions
Natali5045456 [20]

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Increase in solute content

Explanation:

7 0
3 years ago
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