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daser333 [38]
2 years ago
14

A microscope has a 20x ocular (eyepiece) and two objectives,low power is 10 x and the high power is 43x

Biology
1 answer:
Art [367]2 years ago
8 0

false??????????????????????

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Which of the following could be caused by a decrease in carbon fixation?
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<h3><u>Answer</u>;</h3>

An increase in the total biomass of consumers in the world

<h3><u>Explanation</u>;</h3>
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  • Carbon fixation occurs during the light independent reaction of photosynthesis and is the first step in the C3 or Calvin Cycle.
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Skin color is controlled by three pairs of alleles. Someone with very light skin has 6 recessive alleles while someone with very
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Has three dominant alleles

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Skin colour is a polygenetic inheritance and it is controlled by three genes pairs of alleles. The human skin is determined by the amount of melanin it contains. A combination of melanin producing alleles  determines the skin color.

In the above question, the person has a skin color that is midway meaning only half of the alleles produced melanin. The total number of alleles is 6 and half of it is 3. So, only 3 alleles were dominant and the remaining three were recessive.

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