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Papessa [141]
2 years ago
5

Cells from an advanced malignant tumor most often have very abnormal chromosomes, and often an abnormal total number of chromoso

mes. Why might this occur?

Biology
1 answer:
Vera_Pavlovna [14]2 years ago
4 0

Answer:

This happened because the check points in cell cycles are not working properly which can help to stop cells having abnormal chromosomes.

See the attachment for proper understanding what actually happened in cell cycle check points.

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The term ""biomagnification"" means that a chemical ____ at each trophic level in a food chain or web.
Tasya [4]

Answer:

Increases

Explanation:

Biomagnification refers to a phenomenon in which the harmful toxic chemical gest magnified or amplified or increases in the food chain trophic level.

The biomagnification is caused by the bio-accumulation of the toxic material in the organisms.

The harmful toxic chemical enters the food chain through eating like when the crops are sprayed with pesticides and insecticides runoff in the water. From there the toxic material enters the aquatic food chain like from the planktons to fish and then to vultures.

The organisms at higher trophic level die because of the accumulation of the infected lower trophic organisms.

Thus, Increases is the correct answer.

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2 years ago
Which is a purpose for which a pedigree chart might be prepared? to determine the gender of a fetus to determine if a fetus has
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Animals plants and other photosynthesizing organisms play important roles in the nitrogen cycle
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Which organisms undergo Carnegie stages? A lizard B sheep C snail D worm YOU CAN CHOOSE MORE THAN ONE ANSWER!
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Usually, only mammals undergo Carnegie stages.

Therefore, 'B. Sheep' would be the correct answer.
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Before performing an mri, why must technicians ask patients if they have any steel inside their body?
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