Compared to bacterial cells, viruses are

Which of the following examples can cause gene flow between populations? a. an increase in predators to a population of zebra b. a volcanic eruption that kills half of a population of mice c. bird droppings that contain seeds from a different location d. a person that sprays a toxin on a group of mosquitoes

What is the farthest destination to date for a human spaceflight mission?

At which point is crust neither created nor destroyed? island chain mid-ocean ridge divergent boundary transform boundary