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natulia [17]
3 years ago
9

If you look closely at a bubble in the light, you can see rainbows on the surface. Why does this happen?

Biology
1 answer:
Drupady [299]3 years ago
7 0
Because the sun adds light to the clear bubble
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Growth hormone is secreted by the ________ while we sleep.
mihalych1998 [28]
The answer would be pituitary gland.

Completed sentence: Growth hormone is secreted by the pituitary gland while we sleep.
4 0
2 years ago
In the reaction ______ H2 + N2 ----> 2 NH3, what coefficient should be placed in front of H2 to balance the reaction?
schepotkina [342]

2NH3 is equivalent to N2 + H6 since the 2 at the beginning gets distributed to both atoms. Knowing this you can rewite the equation as

H2 + N2 = H6 + N2

The N2 can cancel out leaving

H2 = H6

You now have to ask ‘2 times what equals 6?’ The answer is obviously 3 at this point.


Answer: C. 3


5 0
3 years ago
Decomposers are necessary in an ecosystem because they
nekit [7.7K]
They return nutrients from waste or dead organisms back into the ecosystem to be recycled.
7 0
3 years ago
7. Once the RNA is made, can it immediately leave the nucleus? Explain.
slava [35]

Answer:regulation of RNA processing When a eukaryotic gene is transcribed in the nucleus.

Explanation:

the primary transcript (freshly made RNA molecule) isn't yet considered a messenger RNA. ... The pre-mRNA has to go through some modifications to become a mature mRNA molecule that can leave the nucleus and be translated.

8 0
2 years ago
Muscle cell activity increases and ATP decreases below the set-point, a sensor molecule detects low ATP and activates protein ki
sergeinik [125]

Answer: Feedback mechanism

Explanation:

Feedback mechanism is the body's way of maintaining physiologic processes in the body. These physiologic processes include maintaining homeostasis, production of energy, hormones as well as enzymes required for chemical reactions.

There are 2 types of feedback mechanism:

  1. Positive feedback: The stimulus (message) sent to the brain, produces prolonged increased production or increased activity in the body.
  2. Negative feedback: In negative feedback, the stimulus causes production, secretion or activity till a set point where the body knows it has taken enough. This causes a self termination of the process.

In the increased muscle activity, the increase in activity in turn causes a decrease in energy (ATP) and serves as the stimulus leading to the release of enzymes which in turn lead to increased absorption of glucose which will be used by the body to produce more ATP needed for the muscular activity. At the end of the muscular activity, the body recognizes that it doesn't need an increased absorption of glucose to support increased activity anymore and glucose absorption normalizes.

7 0
3 years ago
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