Homo sapiens appeared on the earth years ago. 50,000 100,000 400,000 300,000

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.

What overall charge must all compounds have

Define dew point. i am writing this part to be able to ask the question