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lisabon 2012 [21]
3 years ago
11

Whats the most abundant element in the atmosphere?

Biology
1 answer:
monitta3 years ago
4 0
The atmosphere is 78% Nitrogen, 29% Oxygen, 0.9% argon, and the remaining gasses (methane, CO2, Ozone...) only appear in trace amounts *this does not mean that there isn't a lot of these "trace" gases, the atmosphere is very very very big, and a few millionths of CO2 can wreck the whole thing. 
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Carbon dioxide and oxygen enter and exit a leaf by diffusion. which structure(s) on a leaf allow(s) this process to happen?
Montano1993 [528]
The stomata and their guard cells allows this happen.

Stomata is like a hole or gap on a leaf, most of them are present in a bottom side of the leaf, since waxy cuticle is not present over there. And 2 guard cells make up a stomata.

Guard cells are able to control the size of the stomata, depending on the situation. For example, the guard cells close up during day time because a lot of sunlight may cause more water loss.

In conclusion, guard cells and the stomata are the main structures that allow carbon dioxide and oxygen (water too) diffuse in and out of leaves.
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Organelles that are surrounded by two membranes and contain DNA are the
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Answer:

C

Explanation:

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In comparison with the renal cortex, fluid in the proximal tubule is hyperosmotic.
ArbitrLikvidat [17]

The proximal tubule fluid is more hyperosmotic than the renal cortex, but this does not influence what is causing the acid-base disruption.

<h3>How does hyperosmotic work?</h3>

In the extracellular space, the first drop in temperature results in the formation of crystals, which creates a hyperosmotic environment that draws water out of the cells and causes them to contract. Organelles & biological membranes are damaged as a result of inner crystal formation as the temperature drops.

<h3>What transpires inside a hyperosmotic environment to a cell?</h3>

A cell submerged in a 10% dextrose hyperosmotic , osmotic pressure solution would initially lose area as water departs and then start gaining proportion as glucose is delivered through into cell as moisture follow by osmosis. This is because water crosses cell surfaces more quickly than solutes do.

To know more about Hyperosmotic visit:

brainly.com/question/28302809

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3 0
1 year ago
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3 years ago
When chemical, transport, or mechanical work is done by an organism, what happens to the heat generated?
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The correct answer is D. It is lost to the environment. Hope this helps!
8 0
3 years ago
Read 2 more answers
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