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Blizzard [7]
3 years ago
6

Oil, coal, natural gas, and uranium are used to generate electrical energy. What is true about ALL of them

Biology
2 answers:
skad [1K]3 years ago
5 0

none of it is renewable


Mars2501 [29]3 years ago
3 0
They're finite resources
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We live in the Cenozoic era, and scientists know more about this era and the epochs it's divided into than any other time period
mel-nik [20]

Answer:

D. We know more about the Cenozoic era because this the most recent time period in the history of the Earth, and we have more information available to study.

Explanation:

The Cenozoic era is the era that is by far the best studied and known by the scientists. The main reason for this is that this era is the most recent one, and it is actually the era we live in. Because it is the most recent era, the Cenozoic is abundant with lot of evidence of what has happened in it. The fossil records are very rich as the fossils didn't had that much time to totally decompose. The rock layers are much younger, so they contain much more detailed evidence of the plant life, climate, changes in the environment. The oceanic crust is also in abundance, which is not the case with the other eras as the oceanic crust is constantly suducted.

6 0
3 years ago
2)Through the action of osteoclasts,
snow_lady [41]

Answer:

Osteoclasts are the type of cells which are responsible for the absorption of calcium from bones.

Explanation:

Osteoclasts is special type of cells which is released by parathyroid gland when the blood have low levels of calcium. Osteoclasts absorb calcium from the bones and add this calcium into the blood to increase the calcium level. If calcium is present in very high amount so this calcium is stored in the bones of the body and extracted when needed by the body.

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Antibiotics are medicines that kill or slow the growth of this type of organisim
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Bacteria ...........
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How can the relationship between vultures and cheetahs be described?
Andrej [43]

The answer to this question is c

4 0
3 years ago
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A cotton farmer applies a new insecticide against the boll weevil to his crop for several years. at first, the treatment was suc
romanna [79]
Yes, it is possible that evolution occurs in this case.

At first, the new insecticide is effective against the boll weevil. Spraying the insecticide will kill the boll weevil in a way. The insecticide might attack boll weevil enzyme or any part of its organs.<span>
But some of them might have a mutation that renders the insecticide ineffective. The mutation probably happens to DNA that code the enzyme or protein that targeted by the insecticide, makes the insecticide completely ineffective.
The next spray will kill all old organism, leaving the new resistant organism in less competition area. This will allow the resistant organism to grow fast and eventually replace all the old organism in the area.</span>
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3 years ago
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