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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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What waste product of photosynthesis allows you to live on earth?
asambeis [7]
Photosynthesis allows plants to take in sunlight, water, and carbon dioxide to make energy for themselves, a type of sugar called glucose. 

Glucose = C_{6}  H_{12}O_{6} 

The other thing that is made from photosynthesis is oxygen. 

Without oxygen, we would not be able to live on earth.

Hope this helps!
4 0
3 years ago
Read 2 more answers
Acid rain occurs when sulfur dioxide is he atmosphere is oxidized in the presence of nitrogen dioxide. Acid rain is an example o
Ierofanga [76]

Answer:

A secondary pollutant

Explanation:

Pollutants can broadly be classified into two main categories based on their formation or synthesis. 1: Primary pollutants, 2: Secondary pollutants.

1: Primary pollutants

Primary pollutant can be considered as any environmental pollutant that is being directly emitted from a certain source like when we burn coal carbon di oxide is directly emitted into the atmosphere so CO2 is a primary pollutant.

Similarly sulfur di oxide or SO2 is also a primary pollutant that is emitted by the gas emissions of motor vehicles.

2: Secondary pollutants:

On the other hand, secondary pollutant is something that is not directly emitted on earth as an environmental pollutant but some how it is formed due to a reaction of primary pollutant.

Such as mentioned in the question that SO2 when oxidized in air in the presence of enzymes and water, it form H2SO4 or acid rain which directly falls on earth and incurs great amount of damage to not only living organisms but also non-living organisms such as marble buildings.

Therefore, acid rain is secondary pollutant. Please see picture for better understanding.

Hope it help!

3 0
2 years ago
Which type of cell is likely to have the most mitochondria?
ANTONII [103]

Answer:

Cells that need to perform high amounts of work, such as muscle cells in the heart and legs, fat cells and liver cells. Mitochondria are organelles which contain their own DNA. Animal cells generally have approximately 1,000 to 2,000 mitochondria.

Explanation:

Hope this helps and brainlest please

3 0
3 years ago
The upper part of graft combination is called ...
Andre45 [30]

The upper part of graft combination is called scion.

3 0
3 years ago
Read 2 more answers
A decrease in the autonomic tone of the smooth muscle in a blood vessel would result in:.
Mrac [35]

A decrease in the autonomic tone of the smooth muscle in a blood vessel would result in an increase in blood flow through the vessel.

<h3>Meaning of smooth muscle</h3>

smooth muscle can be defined as a muscle in the body that is non striated and involuntary in nature.

Smooth muscles are mostly found in hollow organs, passageways and tracts of some systems.

In conclusion, A decrease in the autonomic tone of the smooth muscle in a blood vessel would result in an increase in blood flow through the vessel.

Learn more about smooth muscle: brainly.com/question/13903265

#SPJ1

3 0
1 year ago
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