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tatyana61 [14]
3 years ago
9

What do members of a population have in common? Select all that apply.

Biology
1 answer:
Amanda [17]3 years ago
8 0

Answer:

Explanation:they live in the same area

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The missed cells would die
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Parland’s alligator population has been declining in recent years, primarily because of hunting. Alligators prey heavily on a sp
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(C) The main predator of these fish is another species of fish on which alligators also prey.

Explanation:

The ecosystems are complex systems, and removing one species of them, always has a chain reaction and affects the population of the other species, be it in a positive or negative manner. In this case, the alligators prey upon fish, multiple different species. The alligators though have been removed from the ecosystem, thus the apex predator exists no more. This has opened up the top predator niche in the food chain in this particular ecosystem. The predatory fish species had no predators of its own, so its population increased, thus it needed more food, and that food was obtained by hunting the other fish species, resulting in a decline in the population of the other species of fish. Only when the carrying capacity is reached in the ecosystem for the predatory fish, the population of the other fish will stop declining.

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Different ratios occur in crosses with single gene pairs or two gene pairs. What types of ratios are likely to occur in crosses
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Genotype ratio: 1, 1:1, 1:2:1

Phenotype ratio: 1, 3:1

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Single gene pair cross is also known as monohybrid cross. This means that only one gene usually with two alleles is observed and it express one trait.

For example, if we name the gene for a certain trait with A, the possible genotypes are AA (dominant homozygous), aa (recessive homozygous) and Aa (heterozygous). Possible crosses are:

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The same is with aa x aa (all of the offspring are with aa genotype)

P: AA  x  Aa

F1: AA Aa AA Aa  (genotype ratio 1:1) (phenotype ratio 3:1)

The same genotype ratio is  in aa x Aa (offspring will have aa Aa aa Aa-(genotype ratio 1:1) (phenotype ratio 1:1)

P: Aa x Aa

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P: AA x aa

F1: Aa Aa Aa Aa (1)

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A paramecium is an exsample of
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Upon close examination of the skeleton of an adult python, a pelvic girdle and leg bones can be
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vestigial structure that is C

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