Name one cell type that continues to divide throughout a person's lifetime and one that doesn't continue to divide throughout a person's lifetime.

Genetic disorders can result when sister chromatids fail to seperate properly. during what phase is this problem most likely to occur?

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.

What is an example of a scientific question that galileo could not have answered with out this new tool?