Explain a PREDATION relationship in both a water and land ecosystem. Tell why the relationship is important for the ecosystem to stay balanced.

Nuclear fusion is the source of energy for stars. besides hydrogen, which other element is most likely also common in stars?

What is the molecular formula for a compound that is 46.16% carbon, 5.16% hydrogen, and 48.68% fluorine? the molar mass of the compound is 156.12 g/mol

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.