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Vikentia [17]
3 years ago
7

Which of these statements most accurately describes how carbon dioxide enters a leaf?

Biology
1 answer:
Whitepunk [10]3 years ago
3 0
Carbon dioxide enters the leaf through openings usually found on the underside of the leaf called the stomata. Carbon dioxide passes through the stomata through diffusion, a passive process.
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Which type of blood vessel usually carries oxygen-rich blood
zalisa [80]

Answer:

Arteries

Explanation:

There are three main types of blood vessels: veins, arteries, and capillaries. Arteries are the blood vessels that carry the oxygenated blood from the heart to various body parts. Veins pick the deoxygenated blood and deliver it to the heart to be oxygenated.  

Arteries are the blood vessels with thick walls and no valves. Blood is pumped with higher pressure from the heart into arteries. The pulmonary artery is the only exception that carries deoxygenated blood from the right ventricle to the lungs for oxygenation.  

5 0
3 years ago
During prophase, chromatin condenses into ____
sergejj [24]
During prophase, the complex of DNA and proteins contained in the nucleus, known as chromatin, condenses. The chromatin coils and becomes increasingly compact, resulting in the formation of visible chromosomes. Chromosomes are made of a single piece of DNA that is highly organized.
4 0
3 years ago
How does sucrose move from source to sieve?
dybincka [34]

The sucrose move in source to sieve by active transport.

<h3>What is active transport?</h3>

Active transport is a type of transport in which the cell expends energy to move solutes against their concentration gradients. The sodium-potassium pump is an example of active transport. Active transport differs from passive transport in that the cell does not expend energy.

In this case, the sucrose moves from companion cells into source to sieve elements by active transport. This reduces the water potential of the source to sieve element  by osmosis, which increases the hydrostatic pressure.

See more about sucrose at brainly.com/question/24214907

#SPJ12

4 0
2 years ago
Which of the following is an example of a nonpit source of freshwater pollution
boyakko [2]
Agricultural chemicals is an example of a nonpit source of freshwater pollution
5 0
3 years ago
7) Farmers use fertilizers to help plants grow better. Fertilizers are made of many chemicals. How can fertilizers be harmful to
Eddi Din [679]
While helping plants it can affect bugs,reptiles,mice,etc because of the chemicals it can decrease the population of a living species and affect the food chain
8 0
4 years ago
Read 2 more answers
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