When lions prey on a herd of antelopes, some antelopes are killed and some escape and live to reproduce. Which of the following statements best describes this situation? A. Natural selection is a random process.

B. Individuals with the best adaptations survive long enough to have offspring.

C. Species remain unchanged throughout time.

D. Individuals pass along acquired characteristics to the next generation.

The gene that causes sickle-cell disease is present in a higher percentage of residents of sub-saharan africa than among those of african descent living in the united states. even though this gene causes sickle-cell disease, it also provides some protection from malaria, a serious disease that is widespread in sub-saharan africa but absent in the united states. discuss an evolutionary process that could account for the different percentages of the sickle-cell gene among residents of the two regions.

Which equation is used to calculate the magnetic force on a charge moving in a magnetic field

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.