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Crank
3 years ago
9

By how much did carbon dioxide levels increase from 1980 too 2000

Biology
1 answer:
Scrat [10]3 years ago
3 0
20? I think lol sorry if I am not much of a help




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When animals move into and out of an area during normal cycles, it is
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Migration

Explanation:

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3 years ago
What is a scientific hypothesis?
svet-max [94.6K]

the answer is a.

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Describe the effects of NE and Ach on contractile force that you observed today. Given your knowledge of sympathetic and parasym
Afina-wow [57]

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The answer is Norepinephrine.

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Acetylcholine (Ach) and Norepinephrine (NE) are both chemical substances (neurotransmitters) released primarily by nerve cells and they affect different parts and systems of the body. Acetylcholine mostly targets the muscles and the brain and it is a part of the parasymphatetic nervous system whereas norepinephrine targets the whole body and has an effect that leads to the contraction of muscles and the increase of the heart rate. Norepinephrine is a part of the symphatetic nervous system.

Since the symphatetic nervous system is responsible for the crucial "fight-or-flight" response of our body, it has a more dramatic effect on the muscle contraction. Norepinephrine, being a part of the symphatetic nervous system, should result in a more drastic change in contractile force.

I hope this answer helps.

3 0
3 years ago
Which observation would be the best evidence for a recent founder event or population bottleneck?
Bingel [31]
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When a population bottleneck occur it means that for some reason (i.e. environmental events) the size of a population is largely reduced. This leads to reduction of the genetic variation in that new smaller population. When a bottleneck occur, the founder effect is normally seen, which is that one population is established by a small group of a previously larger population leading once again the genetic variation, now though with a bigger population, to be very reduced.
7 0
3 years ago
How does society affect science? Check all that
Lana71 [14]

Answer:

The correct answer is probably A: The needs of society help determine the types of research conducted.  For example, people are more likely to research ebola when there is an outbreak, right?  B isn't true: for example, society doesn't let scientists experiment on unwilling humans!  C is probably true, but it is more specific than A--that is, C only applies in certain cases.  Society ALWAYS applies to science.  D isn't correct either: society encourages research for the greater good,

Explanation:

7 0
2 years ago
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