Need asap ! emergency! which of these is a characteristic of index fossils? a- found in the topmost rock layer b- found in many layers of the same rock c- have already established relative age d- are limited to a particular geological location

List the two type of transporst that the cell in orde to transport molecules acroos the membrane

What are the first two quantum numbers for the electrons located in subshell 4d? what are the first three quantum numbers for the electrons located in subshell 2s? how many electrons can be held in a sublevel l = 3? how many electrons can be held in the energy level n = 4? how many electrons in an atom can share the quantum numbers n = 4 and l = 3?

An object resting on a table weighs 100 n. with what force is the object pushing on the table? with what force is the table pushing on the object? explain how you got your answer.