Which of the following actions is a behavior? feeling happy
dreaming
humming to oneself thinking about the future

Describe how an electric generator works

The spermists believed that: the male made the only hereditary contribution to the offspring the male and female traits were blended in the offspring the female made the only hereditary contribution to the offspring the male and the female made equal contributions to the next generation

What materials must dams have to produce electricity, and what must occur?