What event might occur when favorable adaptations build up in a population over many generations?
starvation
extinction
migration
speciation

Radiometric dating is used to tell the absolute age of materials by studying the decay rate of radioactive isotopes. the decay rates of isotopes are constant and are expressed as .

Which of the following is a true statement? a. individuals evolve to have adaptations. b. individuals have adaptations that can change over time. c. individuals have traits that may or may not make them successful at reproduction. d. populations cant evolve, only individual organisms.

Why is the statement not a hypothesis? sunflowers require soil and plenty of sunlight and water to grow and thrive.