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AfilCa [17]
3 years ago
15

Oxygen crosses the cell membrane by

Biology
1 answer:
Dimas [21]3 years ago
3 0

Answer:

diffusion

Water, carbon dioxide, and oxygen are among the few simple molecules that can cross the cell membrane by diffusion (or a type of diffusion known as osmosis ).

Explanation:

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The moons orbit is 27 days.
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If the results of an experiment do not support a scientist's hypothesis, what should the scientist do next? O A. Revise the hypo
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A. Revise the hypothesis based on the results and use it to design another experiment.

3 0
1 year ago
Explain weather car battery acid is a pure substance or a mixture
Rudik [331]

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It is a mixture.

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8 0
2 years ago
If the average length of a woman's ovarian cycle is 30 days, the average length of her uterine cycles is most likely ____ days.
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If the average length of a woman's ovarian cycle is 30 days, the average length of her uterine cycles is most likely 28 days.

<h3>What is the ovarian cycle?</h3>

The female ovarian cycle refers to the sequence or cycle that controls the production and release of eggs as well as the the monthly secretion of the hormones estrogen and progesterone.

Hence, if the average length of a woman's ovarian cycle is 30 days, the average length of her uterine cycles is most likely 28 days.

Learn more about ovarian cycle:brainly.com/question/14224887

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6 0
2 years ago
In an investigation of the cycling of environmental gases, a
pav-90 [236]

Answer:

D) It would contain less nitrogen.

Explanation:

In an investigation of the cycling of environmental gases, a  student placed water and bromthymol blue in each of four test  tubes as shown in the diagrams below. No additional items were  placed in tube 1, a snail was placed in tube 2, an aquatic plant  (elodea) was placed in tube 3, and both a snail and an elodea  were placed in tube 4. The tubes were then stoppered and placed  in bright light for 24 hours. The solution in tube 3 changes after 24 hours because it would contain less nitrogen.

The dfferent tubes are shown in the picture that I uploaded.

5 0
3 years ago
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