What statement best describes sound? a) it's a form of work. b) it's a type of force. c) it's a form of energy. d) it's a type of acceleration. submit

Which statement best describes a keystone species? o a. it has littlelmenetic variation. it has an extremely high population. 0 b. 0 c. it remains unaffected by all environmental changes. od. it has a strong influence on the ecosystem. 0 e. it's the first species to populate a new ecosystem.

In which situations is the principle of cross-cutting relationship useful in determining relative age?

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