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gogolik [260]
3 years ago
6

Many farmers in our area clear their fields every few seasons by burning off the fields. They may choose to rotate crops from ye

ar to year to assure proper nutrient concentrations. Some even use chemical fertilizers and weed-killers to ensure they have a successful and attractive crop. With these practices in mind, which statement below is not true?
a) Pioneer species in these areas are perennial wildflowers.

b) Tertiary succession is evident each year.

c) Primary succession occurs annually.

d) Climax communities are never achieved.
Biology
1 answer:
Advocard [28]3 years ago
3 0

Answer:

the answer would be A hope it helps.

Explanation:

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Meiosis is referred to as reduction division as it divides the chromosome number in half. Crossing over or recombination is the main reason of shuffled genes and increased genetic variation in gametes in meiotic cell division as the homologous pairs are paired up during prophase.

<h3>What is crossing over?</h3>

Crossing over is referred to as the exchange of genes of DNA between paired homologous chromosomes. It actually occurs during the development of egg and sperm cells i.e., during meiosis.

It is an enzyme-mediated step, in which the exchange of genetic material takes place between non-sister chromatids of homologous chromosomes.

It actually occurs at the pachytene stage of prophase I of meiosis cell division.

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For more details regarding crossing over, visit:

brainly.com/question/19671756

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