What do you mean by photosynthesis?

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Which layer will become saturated first when rain falls?

Explain how the number of similarities between the embryos from early stage to late stage is used as evidence of a common ancestry

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.