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docker41 [41]
3 years ago
15

Which describes gas exchange in the respiratory system?

Biology
2 answers:
kvv77 [185]3 years ago
7 0

Answer:

A

Explanation:

kolbaska11 [484]3 years ago
6 0

Answer:

A.

Explanation:

A. Gas exchange happens through diffusion.

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Mark
saul85 [17]

Answer:

o increased osmotic pressure of plasma

7 0
2 years ago
In Incomplete Dominance, the dominant allele is not expressed when the recessive allele is around. There are three phenotypes po
Kaylis [27]

Answer: True

Explanation:

In incomplete dominance, neither of the alleles in an heterozygous condition is dominant, thing the organism will show a form of phenotype in which the physical trait expressed is a combination of the two alleles.

6 0
3 years ago
Which chemical can be toxic to the cells if it is not removed?
aliya0001 [1]
The answer is carbon dioxide. im 100 percent this is right<span />
3 0
3 years ago
Read 2 more answers
In phase-contrast microscopy, the differences in refractive indices between organisms and their environments are utilized for be
mina [271]

Answer:

True

Explanation:

In  phase-contrast objective and a phase contrast optical systems is equipped with Light microscope  .

Phase contrast microscope is used to differentiate unstained structures in a cell  that differ in refractive indices and thickness. Thus it is usefull for examining  living unstained organisms.

Light that passed through materials of different refractive index and/or thickness will undergo a change in Phase. The difference in phase or wave front irregularities cause variation in brightness of the structures.

Hoping this might help!!!

7 0
2 years ago
An example of a natural fiber is <br> A. nylon. <br> B. Dacron. <br> C. cotton. <br> D. Acrilan.
riadik2000 [5.3K]
The answer is cotton. It is natural because it is grown and easily woven in to clothes :)
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3 years ago
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