Which of the following is a characteristic of kingdom protista?
a.) some protists are heterotrophs, and others are autotrophs.
b.) all protists are heterotrophs.
c.) all protists are unicellular.
d.) all protists are autotrophs.

What the theory that the sun goes around earth was replaced with the theory that earth goes around the sun this was an exaple of a

In what cells is the human genome located?

Ascientist is designing an investigation to study the impact of invasive bird populations on local, native bird populations at backyard bird feeders. what population is most likely to be a control group for the investigation? amount of food number of bird feeders invasive bird populations local backyard birdfeeders without food