Which term describes the zone of life on the Earth that includes all living things? atmosphere biosphere magnetosphere lithosphere PLS HELP ASAP PLS

Aflashlight battery is an example of a) potential energy b) kinetic energy c) thermal energy d) solar energy

What is the next step in muscle contraction after the actin changes shape? (apex)

8) animals respond in various ways to stimuli detected through their senses. some of these responses are stimulated by the presence of danger. which of these animal responses is the best example of a response to an immediate threat? a) a rooster crows every morning at the first sign of light. b) as something approaches an octopus, it shoots a cloud of ink. c) from late fall until spring, bears hibernate to preserve energy. d) a dog is getting hot in the sunlight, so he moves to a shaded area.