Which diagram BEST represents a community?
Bison herd
Hawk, snake, bison, prairie dog, grass
Bison
Hawk, snake, bison, prairie dog, grass, stream, rocks, air

What is a population? a. all the members of the same species living in the same ecosystem at the same time b. the number of a species living in the same ecosystem over a period of time c. the total number of organisms living in an ecosystem at a point in time d. all the members of a food web in the same ecosystem

Sarah and john are having a discussion on genetic diversity sarah believes it happens over a long period of time john believes it happens immediately who is correct

One brief stimulus of a skeletal muscle may result in a single isolated contractile event, which is called a twitch. one twitch can generate max tension in a muscle. are these statements true or false?