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katrin [286]
2 years ago
5

Please helppp meeeeeee

Biology
1 answer:
natali 33 [55]2 years ago
4 0

Answer:

Ecosystems change over time. Sudden disruptions such as volcanoes, floods, or fires can affect which species will thrive in an environment. ... As species become extinct, the variety of species in the biosphere decreases, which decreases biodiversity, or the variety of life.

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If many new plants and trees are introduced into the ecosystem, how will this affect the numbers of the other organisms within t
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what are the series of iron-protein electron carriers on the inner membranes of the mitochondrion called?
Masteriza [31]
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Explanation:
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Which two features indicate that a cell is a plant cell and not an animal cell?
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In a diploid individual, one chromosome carries A and B genes, and the homologous chromosome carries different forms (alleles) o
Helen [10]

Answer:

D

Explanation:

This involves a dihybrid inheritance I.e. two genes are being passed on. During meiosis, specifically, the Prophase stage, homologous chromosomes (similar but non-identical chromosomes received from each parent) line side by side. According to the question, one chromosome contains A and B alleles and its homologue, received by the other parent carries a and b alleles. This means that the diploid individual has a genotype AaBb for that gene.

According to Mendel's law of independent assortment, the alleles separate independently of one another into gametes. I.e. allele A and a separates into the gametes without affecting alleles B and b of the other gene.

Crossing-over, which is the exchange of chromosomal segment occurs between the two homologues. Hence, the exchange of chromosomal segments containing alleles in the individual will possibly produce four gametes with the genotypes: AB, Ab, aB, ab.

4 0
4 years ago
Answer the following for me, please
andrey2020 [161]
I'm not sure about number 1 or number 6, but I know that 3 is nucleic acid and 5 is solution.
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