Which of the following is not a classification of marine organisms? a. benthos c. neritic b. nekton d. plankton

Mechanical energy is when the amount of kinetic and potential energies added together remains the same. conserved created lost

What do the atoms of elements in the same group have in common? a. they have the same atomic numbers. b. they have the same average atomic masses. c. they have the same number of electron shells. d. they have the same number of electrons in their outermost shells.

For those who need theses answers i just took the test and got everyone of them