Which structures are found only in plant cells, not in animal cells?
O A and B
O B and C
O C and D
OD and A
B.
D
А
С

plant cells have a cell wall chloroplast and a large central vaccine which is not found in animal cells

when atoms of different types of elements join together, they make molecules called compounds. water consists of compound molecules made up of 2 hydrogen atoms and 1 oxygen atom. this is why it's called h2o. water will always have 2 times the number of hydrogen atoms as oxygen atoms.