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BlackZzzverrR [31]
3 years ago
14

A study indicates that fertilizers from nearby farm fields have entered a lake. Which of the following describes a likely change

in this ecosystem in the future? A. Algae populations will increase, and trout populations will decrease. B. Algae populations will decrease, and trout populations will increase. C. Both algae and trout populations will decrease. D. Both algae and trout populations will increase.
Biology
2 answers:
iren2701 [21]3 years ago
4 0
I believe the answer is A
kolbaska11 [484]3 years ago
4 0

Answer: Option A

Explanation:

The crops needs nutrition from the soil to grow. When there is not enough nutrients in the soil fertilizers are added to the soil for the proper growth of crops.

Along with the water the fertilizers containing nitrogen and phosphorus move into the nearby water bodies.

These nutrients helps in the growth of algae in water and this decreases the level of oxygen in the water. this decreases the fishes and other aquatic animals in water.  

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harkovskaia [24]
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3 years ago
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Hunter-Best [27]

Options found elsewhere:

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Answer:

-sometimes genetically different than both parents

Explanation:

Protists are eukaryotes that cannot be classed as animals, plants, or fungi. They are quite diverse. Examples include amoeba, plasmodium, and slime mould.

Because they are so diverse, protists also have very different modes of reproduction. Some protists undergo asexual reproduction, where they simply make a copy of themselves without a mate. Others undergo sexual reproduction.

Therefore, the only option that can be correct is "-sometimes genetically different than both parents" .

If they were always genetically identical to one parent or both parents, that would mean that sexual reproduction could not be possible. If they were never genetically identical to one parent, that would mean that asexual reproduction could not be taking place.

7 0
3 years ago
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vovikov84 [41]

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In a Ecological pyramid, the energy is transferred from the producer to the consumer level. The ecological pyramid is triangular in  structure, this is because the number of organism on each successive trophic level is less than the preceding one or the one below it.

The reason of this shape of ecological pyramid is on subsequent trophic level, the amount of energy transferred is only 10%. The rest of the energy is dissipated in the environment in the form of heat. As only 10% of total energy is transferred to the subsequent level, The amount of energy reaching to tertiary consumer is very less that it cannot meet the energy demand of next level.

4 0
3 years ago
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snow_lady [41]

Answer:

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Explanation:

7 0
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Nondisjunction is the failure of one or more pairs of homologous chromosomes or sister chromatic. 
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3 years ago
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