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Salsk061 [2.6K]
3 years ago
5

If Jacques were to hold his breath the air in his lungs would be kept at a constant temperature. Would it be safe for Jacques to

hold his breath while ascending from the bottom of the lake to the surface?
Biology
1 answer:
zzz [600]3 years ago
6 0

Answer:

It isn't safe at all...

Explanation:

Even if remains at constant temperature, while ascending to the surface of the lake Jacques lung pressure will increase if he hold its breath. Thats because the pressure of water weakens and the pre-hold breath in lungs will expand as he rises. This can cause serious lung damage and drowning is possible.

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Which of the following molecular movements is due to diffusion or osmosis? a) The sodium-potassium pump pumps three sodium ions
MrMuchimi

Answer:

The correct answer is  b) When a plant cell is placed in concentrated salt water, water moves out of the cell.

Explanation:

Osmosis is the movement of solvent molecules from an area of less concentration of solute to high concentration of solute to equalize the concentration of both the side of the cell.

So water will move outside the cell when any cell will be placed in a concentrated salt water because the concentration of solute is high in salt water and low inside the cell.

Therefore when a plant cell is placed in salt water the osmosis of water takes place from inside to outside the cell. So the right answer is b.

6 0
3 years ago
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charle [14.2K]

Answer:

Gas exchange

Explanation:

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4 0
3 years ago
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5 0
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Which of the following bacterial cells would best be able to survive an attack by an antibiotic?
Goryan [66]

Answer:

c. A bacterial cell that lacked receptors on its surface for that antibiotic

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7 0
3 years ago
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5. Which of these events might lead to the modification of a scientific idea?
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