Which hormone causes most men to grow facial hair? a. testosterone b. estrogen c. progesterone d. fsh

Were does condensation occur? a) hydroshereb) lithosherec) boishered) atmosphere

In general, characteristics that an organism survive and reproduce become more common over time. what mechanism of evolution causes this?

Grasses--> mice--> cats--> coyotes suppose 10,000 units of energy are available at the level of the grasses. what is the total number of energy units lost by the time energy reaches the coyote?