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nevsk [136]
3 years ago
11

Which of the following describes how the winter season affects organisms in the tundra biome?

Biology
1 answer:
alukav5142 [94]3 years ago
3 0

The correct answer is D. Animals not adapted to cold migrate to warmer regions, because suppose that the cold temperatures kill most of the plants, so if they can die why they select that place to live? The option B is not logical because this require long time to evolve this characteristic and the option C has more logic but it still not enough, because if the temperatures are colder more animals can die. I hope this help.

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Which one of the following would you predict is an allosteric inhibitor of the Krebs cycle enzyme, α-ketoglutarate dehydrogenase
solong [7]

Answer:

D) NADH

Explanation:

Allosteric inhibitor alters protein conformation in the active site of the enzyme by binding to allosteric site. It consequently changes shape of the active site due to which the enzyme is unable to perform catalytic activity and become inactive.

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7 0
3 years ago
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5 0
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Why is the melting point of table salt much higher than the melting point of sugar
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Explain how independent assortment, crossing over, and random fertilization contribute to genetic variation in sexually reproduc
nikdorinn [45]

Answer:

Crossing over occurs at prophase 1 of first meiotic division; at a point called CHIASMA, when they form a BIVALENT. During this  period genes are switched between non sister chromatids of homologous chromosomes; which  allow the mix up of individual parent's genetic materials leading to formation of recombinant  chromosomes.

Independent assortment of genes  takes place at meta phase 1 of meiosis.it is the lining up of homologous chromosomes randomly, from the  individual parent different  chromosomes . Basically; there are 2n different forms of lining up of homologous chromosomes at this stage.

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Explanation:

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