Identify the subsystem of earth that takes the longest amount of time to change, based on the geologic time scale

Which would prevent a plant from growing

The first signs of cellular differentiation occur in the blastocyst. why is cellular differentiation important for the development of a fully formed human infant?

Control of the body is accomplished by which of the following body systems? nervous system and circulatory system endocrine and repertory system circulatory and respiratory systems nervous system and endocrine systems