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irinina [24]
3 years ago
14

Occurs naturally between organisms living in an environment with limited resources.

Biology
2 answers:
Yanka [14]3 years ago
8 0
I think the answer is A. Competition. :)
inessss [21]3 years ago
4 0
A.competition would be the correct answer I believe
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What information can a scientist learn directly from a single fossil?
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The answer is option D.

What the organism looked like

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3 years ago
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The thyroid gland produces the thyroid hormones triiodothyroine (T3) and tetraiodiothyroinine (T4) which are dependent on the av
Sonbull [250]

Answer:

Iodine in the food items included in the diet

Explanation:

The thyroid hormones (T3 and T4) are the lipid-soluble hormones and are formed when iodine is attached to the amino acid tyrosine. The triiodothyronine (T3) has three atoms of iodine while tetraiodothyronine (T4) has four atoms of iodine attached to the benzene rings of tyrosine.  

Hence, the synthesis of T3 and T4 hormones by thyroid gland depends on the availability of iodine atoms which in turn mostly comes from the diet.  

Active transport of iodide ions occurs from the blood into the cytoplasm of the follicular cells of the thyroid gland. In fact, most of the iodide ions are concentrated in the follicular cells of the thyroid gland in the body. Diet serves as a source of iodine and the diet deficient in iodine leads to malfunctioning of the thyroid gland.  

5 0
4 years ago
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Lesechka [4]

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During digestion, what process or action breaks food down into smaller units that can be absorbed by the body?
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A<span>nother nutrient, fat, stores energy. Before your body can use these nutrients, they must be broken into smaller substances. is the </span>process<span> of </span>breaking down food<span> into usable materials. Your digestive system transforms the energy and materials in </span>food<span>into forms your body can use.</span>
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