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Gnom [1K]
3 years ago
9

1 1.3.1 Test (CST): Introduction to AP Environmental Science

Biology
1 answer:
Mandarinka [93]3 years ago
8 0
If I’m not mistaken it’s A. Oxygen
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The pictogram below is used for_____
igor_vitrenko [27]

It's biohazard. Also if it's flammable the symbol will show a flame and if it's corrosive it'll show a image with a hand being dissolved or like a spot missing by a liquid being dropped from a tube

5 0
3 years ago
100 points + brainliest:3​
trasher [3.6K]

Answer:

1. C

2. B

3. A

4. C

5. D

6. A

7 0
3 years ago
After a big meal, in those individuals who do not have type i diabetes, the pancreas secretes insulin, which circulates through
chubhunter [2.5K]
This is an example of negative feedback. 

After a big meal, glucose levels in the bloodstream increases. The body recognises this change and goes through homeostasis, or the regulation of bodily state or internal environment.

The pancreas secretes insulin, which then binds to insulin receptors. This will result in the uptake of excess glucose from the bloodstream into cells and converted into glycogen to be stored in cells as energy storage molecules. 

Since there is the counter effect of body (i.e. when blood-glucose concentration increases, the body sends a signal to decrease the blood-glucose concentration, this is called a negative feedback (instead of a positive feedback, which occurs if for e.g. the body signals cells to increase blood-glucose concentration even after blood-glucose concentration increased after a heavy meal).

Hope this helps! :)
7 0
4 years ago
Which organisms represents a secondary consumer?
Nat2105 [25]

Answer:

Either small fish or zookplanton

Explanation:

7 0
3 years ago
Manatees are an endangered mammal species that live in bodies of water in Florida. Manatees migrate from summer habitats to wint
ddd [48]

Answer: Im pretty sure it´s D.

Explanation: Manatees like to raise and feed their young in safe places so if we increase the amount of protected areas their population is more likely to increase.

Hope this helps!

7 0
4 years ago
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