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yaroslaw [1]
3 years ago
11

Changing a river into a lake is basically what a large dam does. One reason we do this to create reservoirs of fresh water. Howe

ver, dams change the local ecosystem in a big way. What is one negative impact of building a dam
Biology
1 answer:
rjkz [21]3 years ago
6 0
One negative impact of building a dam could be that it affects natural habitats of animals who live in and around the river. When you build a dam, the river's height becomes smaller because a huge amount of water becomes technically removed or blocked. This can affect animals such as fish or beavers or anyone who needs that water.
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<h2>Heptatitis B Vaccine</h2>

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3 years ago
Which statement best contrasts the urinary and excretory systems?
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A flash flood carried a raft of Amazon ants away from their original population. There is enough distance between the two groups
vitfil [10]

Answer:

geographical isolation

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Reproductive isolation is a process of evolution that ensures that members of different species are incapable of mating and when they do, such mating do not result into any offspring or leads to the production of invalid offspring.

There are two mechanisms of reproductive isolation:

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<em>Geographical isolation involves the existence of geographical barriers between two populations such that there cannot be mating between the two. The two populations eventually evolve to become different species.</em>

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3 years ago
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This nervous system will lower any fight or flight response actions such as the release of epinephrine into the blood and enable digestion, urination and defeacation. When engaged in digestion you feel relaxed and at rest, this is solely due to the parasympathetic nevous system.

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