Which kingdom includes only multi cellular heterotrophs whose cells lack a cell wall. a) animals- b) plants- c) protists- d) archaebacteria

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

Based on anatomical similarities, to which modern animal is dr. digger’s creature most closely related?

Select the correct answer. which term do biologists use to describe the average number of individuals of a species per unit area? a. carrying capacity b. population density c. minimal viable population d. survivability curve