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Eddi Din [679]
3 years ago
7

Which body system work together to protect the body from pathogens?

Biology
1 answer:
Stolb23 [73]3 years ago
5 0
The immune and lymphatic systems work to protect and fight pathogens

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The following figure shows a plant cell immediately after it has been placed in distilled water (A) and a plant cell that has be
DENIUS [597]

Answer:

Plant cell A has lower water potential than cell B. True

Plant cell B is isotonic to the fluid in the beaker. True

Plant cell B's water potential increased due to an increase in solutes inside the cell. False

Plant cell B is at equilibrium with the fluid in the beaker. True

Plant cell A has higher water potential than cell B. False

Plant cell A is at equilibrium with the fluid in beaker. False

Explanation:

Plant cell A has lower water potential than cell B. True

This statement is true because the water potential of A is -2 bars while that of B is zero bars.

Plant cell B is isotonic to the fluid in the beaker. = True

Isotonic solutions have equal water potential. Since the water potential of distilled water is zero and that of plant cell B is zero as well, plant cell B is isotonic to the fluid in the beaker.

Plant cell B's water potential increased due to an increase in solutes inside the cell = False.

An increase in solute inside the cell doe not increase water potential but rather reduces it.

Plant cell B is at equilibrium with the fluid in the beaker. = True

Plant cell B is at equilibrium with the fluid in the beaker because its water potential is zero since the negative solute potential is counterbalanced by the positive pressure potential.

Plant cell A has higher water potential than cell B = False.

Plant cell A has a lower water potential of -2 bars while plant cell B has a higher water potential of zero.

Plant cell A is at equilibrium with the fluid in beaker. = False.

Plant cell A is not at equilibrium with the fluid in the beaker, rather due to its negative water potential, water will move into the cell.

4 0
3 years ago
Which of the following statements is true?
zmey [24]

The answer to the question is A

8 0
3 years ago
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Why would a doctor suggest converging lenses to correct a patient’s vision?
irina1246 [14]
The correct answer would be D. because the patient's eyes have oddly shaped corneas. I really hope that this help's. I just moved to the U.S. so please dun't be mad at me if it's wrong.
7 0
3 years ago
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In the process of beginning an action potential, the threshold refers to:
Dafna1 [17]

Answer:

Option (3).

Explanation:

The action potential may be defined as the change in the electric potential of the cell that helps in the propagation of the nerve impulse. The resting membrane potential of the cell is -70mV.

Threshold potential may be defined as the minimum potential required to transmit the nerve impulse. If the difference between the excitatory signal and inhibitory signal exceeds the minimum intensity, known as threshold. The propagation of nerve impulse occurs.

Thus, the correct answer is option (3).

4 0
3 years ago
At the end of meiosis II, how does the DNA in each of the four new cells compare to the DNA from the original cell?
Black_prince [1.1K]
They are different because meiosis does not make exact copies
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3 years ago
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