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puteri [66]
3 years ago
13

What is the function of the companion cells?

Biology
1 answer:
Alexus [3.1K]3 years ago
3 0

Answer:  

Companion cell is a type of specialized parenchyma cell, which is located in the phloem of the flowering plants.

Each of the companion cell is usually associated with the sieve element. The main function of the companion cell is uncertain but it regulates the activity of sieve tube.

It plays a major role in the loading and unloading of the sugar molecules into the sieve element. As the sieve tubes do not have nucleus and ribosomes so they need companion cell to help in the transportation of sugar molecules.

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The San Andreas fault lies along the boundary of the: North American and Pacific plates South American and Pacific plates North
Scilla [17]

Answer:

Ok, I don't know if this will help any, but it is in the Gulf of California.

Explanation:

I'm pretty sure that those are the North American and Pacific plates?

3 0
2 years ago
Read 2 more answers
Which of the following attributes is common to both prokaryotic cells and eukaryotic cells?
yarga [219]

Answer:

b. the use of DNA as the information storage molecule

Explanation:

Prokaryotic cells are the ones that lack the membrane-bound organelles and well-defined nucleus. Eukaryotic cells have the nucleus and other membrane-bound organelles. Most of the prokaryotic cells are smaller in size as compared to eukaryotic cells. Despite these differences, both prokaryotic and eukaryotic cells have DNA as their genetic material. DNA serves to store genetic information in both types of cells.

8 0
2 years ago
Which do you think would adapt and survive overtime to a mass extinction? A starfish or an eel?
Harlamova29_29 [7]

Answer:

Starfish

Explanation:

This is an opinion questions, so there really isn't a right or wrong answer.  You could just as easily choose Eel.  Your task is to pick one and defend your reasoning.

I chose starfish because starfish have a long history of demonstrated adaptability to a wide variety of conditions.  Their armored skin protects them from a variety of predators, as does the poison that many of them contain.  They have the ability to regrow limbs, and even regrow entire starfish from certain body parts.  When it comes time to breed, starfish meet together in groups.  Each female releases a few million eggs from the gonads in each of her arms.  Each male then releases billions of sperm from each gonad in each of his arms, thus covering the eggs with sperm to fertilize them.

3 0
2 years ago
How does the dust bowl relate to human use and abuse of soil?
vitfil [10]

Answer:

Dust bowl resulted from extreme drying and loosening of the soil that resulted in soil erosion by wind. Thus, it can be related that poor agricultural practices like over plowing , over grazing and leaving the land barren are human activities that must have contributed to the dust bowl.

Explanation:

  • Dust bowl is referred to a period in early twentieth century when the the American and Canadian prairies faced severe dust storms.
  • These dust storms resulted from severe drought and failure of practices to prevent soil erosion.
  • Several people and livestock died as a result of choking.
  • Over plowing, removal of top soil and  small grasses exposed the soil to eroding winds and caused the dust storms.
7 0
2 years ago
If a control group is not included in experiment it would be difficult to
Rus_ich [418]

Answer:

find the right answer

Explanation:

if the control group is nit included in the experiment it would be hard to get the right solution(answer).

I think hopefully this helps.

7 0
2 years ago
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