Which of the following are true about mutations? a. New mutations with beneficial phenotypes are common in a population.
b. New mutations are a âfirst stepâ in the direction of evolutionary change.
c. New mutations are NOT random with respect to their effects on phenotype and fitness.
d. Inside the cellâs nucleus, new mutations are NEVER corrected by transcription factors
e. New mutations are expected during mitosis and meiosis

Elephants in the savanna regions of africa dig holes in dried up river beds to reach water lying just below the surface. these holes provide drinking water for other animals as well. so, without the elephants, many animals might otherwise die from lack of water during the dry season. the location in which the elephants live is an example of a/n and the role they play in creating water holes is an example of a a) ecosystem; habitat b) community; niche c) habitat; niche d) niche; habitat

Explain the significance of thesaurus geographicus

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.