Select four decomposers. mushroom

millipede

vulture

lion

beetle

raven

slug

deer

What are hormones? a. they are minerals needed for proper bone formation. b. they are the parts of the body targeted by endocrine glands. c. they are substances needed for muscle and nerve activity. d. they are substances released by endocrine glands.

How is health different for most people in this country today from what it was for people born in 1900? a. people have a shorter life span. b. people today work harder to survive. c. people today live in poorer sanitary conditions. d. people today can focus less on day-to-day survival and more quality of life.

During the first month of development, how many layers of cells make up the embryo? a. 1 b. 2 c. 3 d. 4