Answer:
3. the absence of a cell wall in human cells
Explanation:
Animal cells do not have cell walls. Cell membranes separate the cytoplasm of the animal cells from the surroundings and maintain their interior. Plant cells have cellulosic cell walls. A cell wall surrounds the cell membrane of a plant cell. Cell walls serve to provide structural support and protect plant cells from pathogens. Cell walls also help keep excess water out of cells so they do not burst. Therefore, human cheek cells would not have cell walls while the onion cells would have cell walls made up of cellulose.
The stomach breaks down food , so it has the most acidic substance
I believe the correct answer to the question is D. This answer choice makes the most sense given the context. Also, since RNA is less stable than DNA, it mutates more often.
Answer:
The correct answer is option B. false.
Explanation:
The seminal vesicles are the site of production of the seminal fluid which makes 60 % of the total seminal vesicles. The seminal vesicles do not store the sperm.
The primary storage site of the sperm in seminiferous tubules and tubular storage sites for the sperm is epididymis.
Thus, the correct answer is option B. false.
