The medium through which a sound wave passes can be a solid, a liquid, or a gas. properties of a wave might change when it moves from one medium to another. what happens to the speed of a sound wave when the medium changes from a gas to a solid?
it slows down.
it remains the same.
it speeds up.
it speeds up and then slows down.

Based on anatomical similarities, to which modern animal is dr. digger’s creature most closely related?

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.

Hey everybody i need with a biology question. all the gametes of isogamous organisms are genetically identical. true false