How the cells and tissues of brain organs work together to allow the organ to do its job

Cells make up tissues, tissues make up organs, and organs make up organ systems. The function of an organ system depends on the integrated activity of its organs. The survival of the organism depends on the integrated activity of all the organ systems, often coordinated by the endocrine and nervous systems.

when a reversible reaction is occurring in both directions at the same rate; the products and reactants do not change in concentration. a chemical reaction where the compound is broken into its constituent parts.

the eggs of the insects should be the first thing collected at the scene.

false