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iren [92.7K]
3 years ago
10

HEEELLLPPP FASTTTT PLSSSSS

Biology
2 answers:
Ratling [72]3 years ago
8 0

Answer:

  • A. Exchange of gas

Mw

Explanation:

Exchange of gas

aalyn [17]3 years ago
6 0
The answer is option A. Hope this helps
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anyanavicka [17]
Hey there,
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3) Weight- If you are obese, you are more prone to get cholesterol. Thus, you need to lose weight
4) Exercise- Exercise regularly to maintain a perfect cholesterol level
5) Stress- If you are a student, take breaks in between study timings to keep you less stress or if you are an adult, go for walks and do something that you like the most to calm your brain down.

Q3) Cholesterol causes plague to grow in your hearts. This thick, hard plague will block the arteries and will cause heart attacks and strokes. 

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3 years ago
What would be the effect on blood flow if some arteries lost their elasticity?
viktelen [127]

c because the elasticity of arteries allow them to expand and contain more blood in them.

Hope this helps :)

3 0
3 years ago
What is science?​?????
MA_775_DIABLO [31]

Explanation:

science is the practical and intellectual activity encompassing the systematic studying of the behaviour and structures of the physical and natural world

7 0
3 years ago
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Cockroaches are exposed to a pesticide. After 3 hours, 95% of the insects are dead.
Alenkasestr [34]

Answer:

IV: Amount of pesticide

Independent variable is what can be changed

DV: Time of death how long it takes

What you can’t change

Explanation:

8 0
3 years ago
How are land, air, water and living things impacted by too much carbon dioxide?
choli [55]

Answer:

- In terrestrial environments: increasing CO2 levels cause an increased photosynthetic rate

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- In both terrestrial and aquatic environments: increasing CO2 levels lead to an overall increase in the average temperature (global warming)

Explanation:

In terrestrial ecosystems, rising carbon dioxide (CO2) levels increase the rate of photosynthesis (since CO2 is one of the reactants in photosynthesis), thereby also increasing plant growth. Moreover, in aquatic ecosystems, rising CO2 concentrations increase the levels of this gas dissolved on the surface of the oceans. This increases the acidity of the oceans, thereby modifying habitats and food web structures. The increasing acidity of the oceans also reduces the amounts of carbonate, which difficult for aquatic species (e.g., corals) to form their shells/skeletons. Finally, CO2 is a greenhouse gas that contributes to the increase in the average temperature by absorbing solar radiation that would otherwise have been reflected by the Earth's surface, and this increase in the temperature negatively affects life in both terrestrial and aquatic environments.

5 0
2 years ago
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