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blagie [28]
3 years ago
9

Choosr all the answers that apply.

Biology
1 answer:
PSYCHO15rus [73]3 years ago
4 0

Answer:

should be "3. is used by airplane"

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A new microorganism has been isolated from hot springs in Yellowstone National Park. It consists of single cells, which appear t
horsena [70]

Answer:

Bacteria

Explanation:

Bacteria are a group of single celled organisms that are neither plants or animals.

Bacteria lack cell organelles such as the nucleus and the chlorophyll.

They can be found in many environments and most of them are adapted to survive in extreme environments such as hot-springs where the temperatures are extremely high.

Unlike the plant cell wall, bacterial cell wall has a layer of peptidoglucan which determines their shape. Their cytoplasm contains both DNA and RNA.

5 0
3 years ago
Approximately _____ elements occur naturally on earth.
FromTheMoon [43]
<span>Of the 118 elements that have been discovered, 90 of them indisputably occur in nature. There is disagreement over whether four more or eight more occur naturally as a result of radioactive decay of other natural elements. The answer is, therefore, 94 or 98.</span>
3 0
3 years ago
Read 2 more answers
Why does scientific theories change ?
suter [353]

It depends on whatever it's real or just a simple theory. But, at times it may not be simple as it seems, because theories are often left as theories. In the near future (or even now) they'll be testing to see if theories can be proven as a fact!

Good luck!

4 0
3 years ago
What does it mean to say genes are self-regulating?
kumpel [21]
It means that they are not like pre-set blueprints. They react differently according to changes in the environment.<span />
6 0
3 years ago
Which part of an atom has the most of its mass?
schepotkina [342]
The nucleus contains the protons and neutrons giving it the most mass
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