B. form images of internal organs
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.
A=2
B=red blood cells rely on catalase, catalase decomposes hydrogen peroxide
C=The effect of replacing his is that the hydrophobic amino acid would not do well with water
D= the hydrophobic amino acid is like oil and water and wouldn’t do well decomposing hydrogen peroxide
B - Many Agricultural practices bear some pretty bad impacts on the environment. A, C and D are incorrect.
