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Harlamova29_29 [7]
2 years ago
14

Need help with 2 science 10 questions (20 points)

Biology
1 answer:
viva [34]2 years ago
5 0
A) Alternation of environment.
B)Have reserves/national parks protecting these creatures, and also counting them as extinct creatures so they can be protected more.
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During exercise, epinephrine and norepinephrine are released from the adrenal medulla. Epinephrine and norepinephrine have the s
matrenka [14]

Answer and explanation:

Epinephrine and norepinephrine are two hormones that are released from the adrenal medulla when the body is under stress (like during exercise, for example) as a part of the sympathetic response.

These hormones have many functions and they all work together to prepare the individual for a fight or flight response -<em> like increasing heart rate and producing bronchodilatation</em>. One of these functions is the rise of glucose levels in blood which is important for this substance to reach several tissues, like the skeletal muscle. The skeletal muscle will make use of this glucose to produce ATP and generate the required energy for muscle contraction through a process called glycolysis, which is key for the fight or flight response mentioned above.

When we exercise, glucose levels rise thanks to these hormones so the skeletal muscle can have enough energy to contract and move as we want. If the exercise is too intense or prolongued, glucose levels will drop and other fuels will be needed to sustain this activity, like stored glycogen and fat.

7 0
3 years ago
9.If you break an atom apart would it still behave like the element that makes it up? (yes/no)
makkiz [27]

Answer:

Yes.

Explanation:

The energy released in splitting just one atom is miniscule. However, when the nucleus is split under the right conditions, some stray neutrons are also released and these can then go on to split more atoms, releasing more energy and more neutrons, causing a chain reaction.

3 0
3 years ago
Lord howe island is a volcanic island in the tasman sea that is about 11 km long and 2.8 km wide. the island has two species of
Alenkinab [10]

<u>Answer</u>: Hybridization.

Hybridization is the process through which two species can mate with each other and produce fertile offspring thus creating a new species.

This is not happening with the two palm species on the island. This may be due to prezygotic barriers that prevent these two species from mating and producing a zygote (fertilized egg cell). In essence these barriers prevent any gene flow between the two species.

7 0
3 years ago
Read 2 more answers
Which part of nephron most of the reabsorption takes place?
Deffense [45]

Answer:

Reabsorption takes place mainly in the proximal convoluted tubule of the nephron .

8 0
3 years ago
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The percentage of oxygen by mass in water is
Masja [62]

Answer:

88.89%

Explanation:

5 0
3 years ago
Read 2 more answers
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