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Zina [86]
3 years ago
15

What is one difference between a cell wall and a cell membrane?

Biology
2 answers:
SOVA2 [1]3 years ago
6 0

answer choice 4 is the correct answer. i just took the test.

AleksandrR [38]3 years ago
4 0
The correct answer is number 4.
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Explain the physics of light as it relates to photosynthesis. What is a pigment, what is a photon?
Sunny_sXe [5.5K]

Explanation:

photosynthesis, the process by which green plants and certain other organisms transform light energy into chemical energy. During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.

a pigment is the natural colouring matter of animal or plant tissue.

a photon is a particle representing a quantum of light or other electromagnetic radiation. A photon carries energy proportional to the radiation frequency but has zero rest mass.

4 0
3 years ago
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erica [24]

Answer:

interphase and the mitotic (M) phase.

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The Calvin cycle is the cycle where in sugars are produced in the chloroplast. Calvin cycle is also known as the Calvin-Benson cycle. Calvin cycle has three stages this is fixation, reduction, and regeneration.  Calvin cycle is needed in Photosynthesis.    

3 0
3 years ago
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alekssr [168]

Answer:

c

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The mouth doesn't produce sperms.

5 0
2 years ago
PLEASE HELP<br> ME PLEASE
nikitadnepr [17]
Whales are closely related to hoofed mammals with an even number of toes, such as horse, because they evolved from them. Before whales were what we know them as today, they were relatively similar to horses. They used the water to flee from predators, and they evolved slowly to heighten their swimming ability, eventually becoming modern day whales. Fish have always been aquatic animals that have gills. Whales cannot breathe underwater, so they take in oxygen the same way a horse does. Also, both horses and whales are mammals that give birth to their offspring and are warm-blooded. Fish lay eggs and are cold-blooded.

Hope this helped! Please give brainliest! :)
5 0
3 years ago
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