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Setler79 [48]
3 years ago
14

PLEASE HELP! I need an answer ASAP!

Biology
2 answers:
11111nata11111 [884]3 years ago
7 0

Gravity , Explosion

<u>Explanation:</u>

Nebulae are made of dust and gases—mostly hydrogen and helium. The dust and gases in a nebula are very spread out, but gravity can slowly begin to pull together clumps of dust and gas. As these clumps get bigger and bigger, their gravity gets stronger and stronger.

Eventually, the clump of dust and gas gets so big that it collapses from its own gravity. The collapse causes the material at the center of the cloud to heat up-and this hot core is the beginning of a star.

zimovet [89]3 years ago
4 0

Answer:

Gravity, explosion

Explanation:

I just took the test

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If a professor accused you of cheating on a test, your adrenal glands would probably release ________ into your bloodstream
solong [7]

Answer: D. Epinephrine

Explanation:

During perceived danger the fight-or-flight response includes faster heart beat, quickened breath, tense muscles and thought speed up. This co-ordinated set if physiological changes is triggered by two hormones of the adrenal gland, epinephrine and norepinephrine.

The major activities of these hormones is to increase the amount of chemical energy available for immediate use, increase the heart rate and stroke volume and dilate the bronchioles in the lungs, action the raise the rate of oxygen delivery to the cell.

Answer is epinephrine

3 0
3 years ago
PLEASE HELP I WILL MARK BRAINLIEST!!!!
Eduardwww [97]

Answer: (B)

Explanation: They are asking for a comparison between light waves and sound waves.
A  and C is wrong because it only says about sound waves
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3 0
1 year ago
HELP! QUICK!
Readme [11.4K]

Answer:

b

Explanation:

7 0
3 years ago
What is a possible effect of an error during transcription?
Leviafan [203]

A possible effect of an error during transcription is the wrong amino acid chain, will be produced.

Option D

<h3><u>Explanation: </u></h3>

The "wrong amino acid chain", will be produced as a possible effect of an error during transcription. A mutated set of proteins will start getting produced. They will have different or faulty functioning. In some cases, they won't have any functions of their own.

To avoid the possibility of an error, the transcript goes through a process of proofreading which further eliminates the chances of a wrong protein being developed.

7 0
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