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vaieri [72.5K]
3 years ago
15

In a sample of double-stranded DNA, 30% of the nitrogenous bases are adenine (A).

Biology
1 answer:
Sholpan [36]3 years ago
5 0

Answer:

30% thymine

Explanation:

If 30% of Adenine is present, it would be reasonable to assume that 30% of Thymine will be present, as the ratio between the two complementary nitrogenous bases will be roughly equal. Therefore, that leaves us with 40% between Cytosine and Guanine.

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Яке біологічне значення сну​
Oksana_A [137]

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5 0
3 years ago
The part of the eye that prevent light from reflecting internally and is heavily vascularized to deliver blood to the retina:___
Ne4ueva [31]

The part of the eye that prevent light from reflecting internally and is heavily vascularized to deliver blood to the retina: choroid.

<h3>What is choroid?</h3>

The choroid is highly vascularized to provide blood to the retina and contains dark pigmentation to stop light from reflecting inside. Anteriorly, the choroid, ciliary body, and iris are all joined.. The ciliary body muscles regulate the lens's thickness. The iris acts as a diaphragm, changing the pupil's aperture at its center. This regulates how much light is allowed to enter the retina. In strong light, the iris' muscle fibers constrict the pupil to accommodate close vision; in low light, they enlarge it to accommodate far vision. Each individual's iris is a different color.

To know more about choroid visit:
brainly.com/question/799280

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6 0
1 year ago
The presence of nitrogen-fixing plants should benefit nearby individuals of other species, because nitrogen is a key nutrient--i
saul85 [17]

Answer:

The correct answer is "Nitrogen will only become available to other, nearby plants when the nodules or the nitrogen-fixing plant itself dies".

Explanation:

Nitrogen fixing bacteria maintain a symbiotic relationship with plants. Bacteria performs nitrogen fixation providing the plant with ammonia, while bacteria has a safe place and nutrients to prosper. This relationship is very intimate because it occurs at the root hair of the plant at structures called nodules. Therefore, nitrogen will only become available to other, nearby plants when the nodules or the nitrogen-fixing plant itself dies

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3 years ago
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cluponka [151]
Because ATP is phosphate-phosphate bond so ATP can store energy for use by cells :)))
i hope this be helpful 
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3 years ago
The digestion of _______ begins in the mouth.
REY [17]
Fat. Hope this helps
6 0
3 years ago
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