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Anna007 [38]
3 years ago
5

Why do plants need nitrogen?

Biology
1 answer:
stich3 [128]3 years ago
3 0
To make amino acids which makes proteins
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In the conservation of species, protection of entire ecosystems ensures that _____. humans have no impact on the ecosystem abiot
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Ensures that species interactions are preserved..

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State one reason that the population of mountain lions is smaller than the population of other animals in the food web
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Explain how this experiment showed that gene flow was not the cause of antibiotic resistance.
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Due to no transfer of resistance allele.

Explanation:

The gene flow was not the cause of antibiotic resistance because the characteristics can't be transferred from one generation to the next generation. The organisms are evolved to become an antibiotic resistance due to their environmental conditions and this resistance quality is only present in the existing population and the alleles that are responsible for this resistance can't be transferred from the bacteria to the next generation so the experiment showed that gene flow was not the cause of antibiotic resistance

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No decorrer das semanas, a lua apresenta diferentes aspectos. A causa para essas mudanças na aparência do satélite da terra é: A
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The moon has different aspects and appearance because of the sun's rays that fall on the moon's surface. The shape of the Moon does not change itself, it occurs due to the sunlight. We only see that part of moon which is lit by the Sun. The phases of moon occur because the Sun lit different parts of the moon when the Moon revolves around the Earth so we can say that sun rays are responsible for the changing of shapes of the moon.

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The blood pathway is divided into two circuits, both beginning and ending in the heart.

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Each organ has an afferent vessel, supplying blood, and an efferent vessel carrying non-oxygenated blood.

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It begins in the right ventricle, from where the pulmonary artery sends blood without hematosis to a single organ, the lung. The blood is then oxygenated and returns to the left heart (left atrium) by the pulmonary veins.

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