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KatRina [158]
3 years ago
7

Which of the following plant-cell organelle supports and maintains the cell's shape and protects the cell from damage? A. cell m

embrane B. cell wall C. chloroplast. D. vacuole
Biology
2 answers:
Solnce55 [7]3 years ago
8 0
I believe the organelle would be B. Cell wall.
ryzh [129]3 years ago
3 0

Answer;

-Cell wall

Explanation;

-The cell wall is thick and fibrous and provides a barrier between the cell and its external environment.

-The plant cell wall is composed of cellulose. Cellulose is a structural carbohydrate and is considered a complex sugar because it is used in both protection and structure. The plant cell wall consists of three layers. Each layer has its own unique structure and function.

-A major role of the cell wall is to form a framework for the cell to prevent over expansion. Cellulose fibers, structural proteins, and other polysaccharides help to maintain the shape and form of the cell. Additional functions of the cell wall include: Support: The cell wall provides mechanical strength and support.

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3 0
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Explanation:

6 0
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8 0
3 years ago
I’m having trouble understanding this can someone plz explain?
Leni [432]

Answer:

look at the pictures

Explanation:

1. If we cross the parental generation which is RR x rr, the probability of the F1 generation to get  rough coat is 100% and they will be a carrier of the recessive trait smooth coat.

Since the phenotypic ratio is 100% heterozygous Rr, in crossing the F1 to get the F2, we will use the genotype Rr. To get the F2, use the cross  Rr x Rr.

The phenotypic ration for F2 is 3:1. There is 75% to get rough coat and 25% smooth. The answer is based on the result on the Punnett square. On the other hand, the genotypic ratio is 1:2:1. There is 25% probability to get RR genotype, 50% Rr, and 25% rr.

2. Since the two parental mice got 6 albino offspring and 5 brown mice offspring, it is approximately 50%. it takes a parental mice who is Brown that is carrying an albino trait crossed with an albino to get offspring with almost the same number. Therefore, the genotype of the brown mice is Aa.

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2 years ago
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Answer:

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