In which organ in a earthworm can i find the content to be most ground up and why

2. how is heavy water different from normal water

Select each correct answer. more than one answer may be correct. which of the following is a characteristic of unicellular organisms? they can possess tissues and organs. all of their functions are performed by a single cell. they are usually microscopic. each of their cells is specialized to perform a specific function.

How many molecules are found in 1.32 mol of nacl?