Glucose molecules give organisms usable energy.
TRUE
FALSE

The nervous system interacts with the endocrine system by a. using hormones as connections b. sending nerve impulses directly to glands c. using neuroendocrine cells as connections d. sending neurotransmitters directly to neurons

In the water cycle , when does water undergo a chemical change

Identify the composition of oceanic and continental crystal rocks. in a model of earth’s interior, where would these rocks appear?