Along with other distinct traits, a robust australopithecine had adapted for grinding food.

Which statement best describes how the loudness of the sound affects the high-pressure region created by the sound wave? a. a louder sound has no effect on the pressure created. b. a louder sound means a high-pressure region that is higher. c. a louder sound means a high-pressure region that is not as high.

Give an example of a trait that is controlled by more than one gene.

What are potential sources of error in marta’s experiment