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FrozenT [24]
3 years ago
13

How does the respiratory system maintain homeostasis?

Biology
1 answer:
kotykmax [81]3 years ago
3 0
Homeostasis is maintained by the respiratory system in two ways: gas exchange and regulation of blood pH. Gas exchange is performed by the lungs by eliminating carbon dioxide, a waste product given off by cellular respiration.
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What was a conclusion that Mendel drew from the F2 generation of this cross?
Ber [7]
<h3><u>Answer;</u></h3>

That parental traits that were not observed in the F1 reappeared in the F2.

<h3><u>Explanation</u>;</h3>
  • Mendel accounted for the observation that traits which had disappeared in the F1 generation reappeared in the F2 generation by proposing that traits can be dominant or recessive, and the recessive traits were obscured by the dominant ones in the F1.
  • <em>I</em><u><em>t was important that Mendel examined not just the F1 generation in his breeding experiments, but the F2 generation as well, because parental traits that were not observed in the F1 reappeared in the F2.</em></u>
3 0
3 years ago
In general, why might cell-wall inhibiting antimicrobial drugs be less effective on gram-negative bacteria compared to gram-posi
asambeis [7]

Cell-wall inhibiting antimicrobial drugs be less effective on gram-negative bacteria compared to gram-positive bacteria because the outer membrane of the gram-negative bacteria inhibits penetration of the drug and the peptidoglycan found in gram-positive bacteria is structurally different from that in gram-negative bacteria.  

Answer: Option B & C

<u>Explanation:</u>

Antimicrobial drugs are induced into a body to act on that particular selective bacterium which causes disease. When antimicrobial drugs are injected they act efficiently on the gram positive bacteria inhibiting the proliferation of the cells by acting on the cell wall so that cell multiplication doesn’t happen.

On the other hand it is hard to act on the gram-negative bacteria as it has a cell membrane that inhibits drug penetration into it. Both cell walls contain peptidoglycan but in the gram-positive is more assembled and layered while in the gram-negative it is just a thin layer. As gram-positive is thick layered it provides place for another molecule to attach to it but the thin layer in gram-negative inhibits it.

4 0
3 years ago
Q40.is a proposed explanation for an observation.
Tcecarenko [31]

Answer:

C. Hypothesis

Explanation:

Hypothesis is a proposed explanation for a certain occurrence and when the explanation is conclusive, then it becomes a theory.

3 0
2 years ago
Which molecules make up carbohydrates?
soldi70 [24.7K]

Answer:

b

Explanation:

4 0
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Which term means having only one set of chromosomes?
Salsk061 [2.6K]
One set of chromosomes would be Haploid
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3 years ago
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