Which of the following statements about similarities among the inner planets is true
1. mercury and mars have the same number of moons.
2. mercury and venus have similar atmosphere.
3. earth and venus are about the same size.
4. earth and venus are closer to the sun than mercury and venus.

Why is it important that fibrin is insoluble in water?

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 was the purpose of mendel's experiments with dihybrid crosses? a. to determine if dna was a transforming factor b. to determine if traits could be recessive c. to determine if traits affected each other d. to determine if traits had more than one allele