Aperson with dark skin produces more of what than a person with lighter skin?

What type of cell is produced after fertilization occurs and the gametes combines ?

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.

Climate warming trends allow plant and insect species to inhabit larger ranges. select the best answer from the choices provided