How would you expect the number of births to compare to the number of deaths in a population that was changing?

Use the drop down menus to match each example to the fossil topic discussed then to show how the fossil record gives evidence of evolution

In general, characteristics that an organism survive and reproduce become more common in a population over time. what mechanism of evolution cause this change?

Viruses can be transmitted through air, water, food, insect bites, and direct skin contact. once a virus gains entry into the body, it invades a host cell in order to? a. synthesize antibodies for defense b. deactivate the host cell's defenses c. access cell processes for reproduction d. metabolize host proteins and grow