Adivide as it relates to earth science is the
a. elevated land area that separates one watershed from another.
b. stream that flows between two trees.
c. largest river system possible.
d. rate of precipitation that exceeds infiltration

Amutagen is 1: a living thing that has undergone a mutation. 2: an agent that causes a mutation in dna. 3: a mutation that has affected one gene. 4: a chemical that can poison living cells.

1. describe the structure and function of the specialized cells you observed in the video. 2. research the types of cells present in the kidney.

Drag each tile to the correct box. the body monitors the levels of oxygen in the blood to regulate breathing. isabel is running in a marathon and is near the finish line. she feels out of breath. how will her nervous system work to generate a reaction? arrange the tiles in chronological order. isabel's breathing rate increases. sensory receptors in the arteries detect low oxygen levels. the brain sends signals through motor neurons. sensory neurons generate an impulse. the central nervous system relays an impulse to certain brain regions.