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leva [86]
3 years ago
13

Tracheids and vessels together make up

Biology
1 answer:
mr_godi [17]3 years ago
6 0
The answer is A. Xylem.
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Remembering the function of chloroplasts, in which part(s) of the leaf is photosynthesis taking place​
larisa [96]

Answer:

Palisade mesophyll and guard cells. 13. Remembering the function of chloroplasts, in which part(s) of the leaf is photosynthesis taking place?

Explanation:

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6 0
2 years ago
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How is the light energy absorbed by plants important to photosynthesis?
4vir4ik [10]
I think that p<span>igments </span>absorb light<span> used in </span>photosynthesis. In photosynthesis<span>, the sun's </span>energy<span> is converted to chemical </span>energy<span> by photosynthetic organisms. ... For instance, </span>plants <span>appear green to us because they contain many chlorophyll a and b molecules, which reflect green </span>light<span>.

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3 years ago
The study of environmental science must involve discussion of human culture and people’s oppinions on politics and economics
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3 years ago
Which muscles assist in inhalation when running up the stairs? A) sternocleidomastoid, pectoralis major, scalenes B) sternocleid
Ulleksa [173]

Answer:

Sternocleidomastoid, pectoralis minor, scalenes

Explanation:

During normal inhalation, contraction of the diaphragm and the contraction of external intercostals expands the chest cavity. The increased volume of the thoracic cavity results in reduced alveolar pressure than the atmospheric pressure to facilitate the flow of air into the lungs in response to the pressure gradient.

During deep inhalation as it occurs when running up the stairs, the accessory muscles of inhalation also participate to increase the volume of the chest cavity. The contraction of scalene and sternocleidomastoid muscles increase the volume of the chest cavity further to create a greater drop in alveolar pressure.

During forceful inhalation, the sternocleidomastoid muscles serve to elevate the sternum, the scalene muscles serve to elevate the first two ribs while the pectoralis minor elevate the third through fifth ribs.

7 0
3 years ago
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Polarity affects hydrogen bonding because hydrogen bonding occurs due to a bond being polar. One side of the bond will be slightly more negative because it's pulling more electrons towards itself and the other side of the bond will be more positive. Therefore the partially positive bond of one molecule will be attracted to the partially negative bond of another molecule. This is called an intermolecular force and hydrogen bonds are the strongest intermolecular force.
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3 years ago
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