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Arada [10]
3 years ago
5

(( EARTH SCIENCE ))

Biology
1 answer:
In-s [12.5K]3 years ago
5 0
Letter A is the answer.
Ur welcome hope this helped
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What is cation exchange
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Cation-exchange capacity is a measure of how many cations can be retained on soil particle surfaces. Negative charges on the surfaces of soil particles bind positively-charged atoms or molecules, but allow these to exchange with other positively charged particles in the surrounding soil water

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It has been hypothesized that humans arrived in North America by crossing a land bridge in the far north between what is now Asi
andrew11 [14]

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Is a vicariance event

Explanation:

Even both terms are very similar, there is a difference. A dispersal event occurs when an initial specie travels from one place to another and due to the  environmental factors and the adaptation that need to develop to survive will change into different species. In the other hand, the vicariance, is a process in which there is a specie and it lives in a wide are, but it fragments into groups mainly by the continental drift, so with the passing of time it turns into different characteristics, as the human race.

4 0
3 years ago
PLEASE HELP!!!! 30 points!!!! Start a discussion on Homeostasis. List 2 facts and 2 opinions.
kipiarov [429]

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facts: The tendency to maintain a stable, relatively constant internal environment is called homeostasis. The body maintains homeostasis for many factors in addition to temperature. For instance, the concentration of various ions in your blood must be kept steady, along with pH and the concentration of glucose.

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Explanation:

4 0
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An operation to repair inguinal hernia is called:
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I think the answer would be option C

HERNIORRHAPY

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