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liq [111]
2 years ago
6

What 4 things help to keep blood flowing through the veins in one direction?

Biology
1 answer:
Elanso [62]2 years ago
7 0

Answer:

Valves in the veins keep blood flowing in the correct direction.

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Compare and contrast genetic engineering to the process of natural selection select all statements that are are
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Genetic engineering is due to the human selection of desired phenotypes, whereas natural selection is a slow process of differential survival and reproduction.

<h3>What does natural selection mean?</h3>

According to the evolution theory, natural selection is a slow process of differential survival of the fittest organisms in a given environment.

Conversely, genetic engineering refers to the molecular biology techniques used in the laboratory to produce organisms expressing desired phenotypes.

In conclusion, genetic engineering is based on human molecular biology techniques, whereas natural selection refers to differential survival and reproduction in nature.

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They live in or around freshwater ponds, lakes, rivers, marshes and swamps.

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During a windstorm, a large old tree fell in the forest. As it came down, it trapped a young sapling about 5 meters tall underneath it. The top of the 

Auxin and gibberellin in the sapling's stem will cause a gravitropic response in the sapling, and its stop will grow upward even though it is held down. 
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