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blagie [28]
2 years ago
10

The ability to make antibody quickly after second exposure to an antigen is due to?

Biology
1 answer:
antoniya [11.8K]2 years ago
6 0
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Water acts as a _____.<br> 1. solution<br> 2. solute<br> 3. mixture<br> 4. solvent
arsen [322]

Answer:

solvent

Explanation:

6 0
3 years ago
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one hypothesis in the barn-swallow study was that long-tailed swallows would produce more offspring than average-tailed swallows
AURORKA [14]
I think the correct answer from the choices listed above is the last option. The control group to be used to test the hypothesis would be the swallows with average-length tails. A control group <span>is defined as the </span>group<span> in an experiment or study that does not receive treatment by the researchers.</span>
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3 years ago
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In flowering plants, plasmodesmata are narrow channels through cell walls that connect the cytoplasms of adjacent cells. An expl
Naddika [18.5K]

Answer:

Option-D

Explanation:

Plasmodesmata are the plasma membrane lined pores present in the cells of the plants. Inside these pores runs a closed tubelike structure which is an extension of the endoplasmic reticulum.

The plasmodesmata allows cell to cell communication which involves symplast mode of transport that is through its cytoplasm.

The small water soluble molecules like amino acid and sugars can easily pass through these plasmodesmata via diffusion. The large molecules can be transported through these plamodesmata through selective diffusion.

Thus, Option-D is the correct answer.

7 0
3 years ago
Plants Which part of the carbon cycle occurs when plants, trees, or fossil fuels are burned?
expeople1 [14]
I believe C- photosynthesis but I could be wrong.
5 0
2 years ago
Compare aerobic and anaerobic respiration. Which produces more energy (ATP?) Why?
lions [1.4K]

Answer:

Aerobic respiration is far more energy-efficient than anaerobic respiration. Aerobic processes produce up to 38 ATP per glucose. Anaerobic processes yield only 2 ATP per glucose

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2 years ago
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