Molecules in food contains chemical energy that cells use to produce MORE CELLS. This energy is gotten from the chemical bond energy in food molecules, which in this way serve as fuel for cells. The particles in food additionally give the atoms that animals need to develop new living matter.
Answer:
D
Explanation:
Lymphocytes are the second line of defence
First line of defence indiscriminately defends against all pathogens unlike secondary response which is targeted. First line of defence refers to the external body components like skin, secretions from the body in the alimentary canel
Mucus traps pathogens. Stomach acid kills pathogens
The answer is B because:
Cell walls are made of cellulose and proteins (hence II).
Animal cells don't have cell walls (only cell membrane) but plant cells do so IV
They must be semipermeable since materials for example carbon dioxide and water for photosynthesis have to go into the cell <em>some</em> way.
Answer:
False, I think it has it’s own purpose somehow, it’s made for no reason
Explanation:
Please give me brainliest