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kvasek [131]
3 years ago
8

12.

Biology
1 answer:
r-ruslan [8.4K]3 years ago
8 0

Answer:

d

Explanation:

The tetrad is formed by synapsis of homologous chromosomes.

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Which of the following organisms convert energy from the sun into chemical energy?
Natalka [10]

Answer:

This would include any plant/moss/tree/any autotroph.

Explanation:

Autotrophs are capable of making their own food, unlike heterotrophs who consume other organisms and autotrophs to receive nutrients.

4 0
3 years ago
Which pair of body systems control and coordinate the cells that make up the organism?
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A. Nervous and Endocrine

5 0
3 years ago
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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
A beaker of water is separated by a selectively permeable membrane that allows the passage of water but not ions. A solution of
postnew [5]

Answer:

osmosis

Explanation:

The process that was going is <u>osmosis</u>.

<em>Osmosis is the movement of water molecules from regions of high water potential to regions of low water potentials through a selectively permeable membrane.</em>

In this case, the membrane is only permeable to water movement and not ions and water molecules move from the side with pure water (which happens to have higher water potential) to the side with 4% sodium chloride until equilibrium in water potential is established between the two sides.

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3 years ago
Which of the objects is producing the greatest force?
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c.Racquetball

because the lighter the object the more force it needs to go

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