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.

Which of these is the most likely consequence of falling petroleum price

Which of the following protists gets nutrients mainly by absorbing molecules from other organisms through their cell walls and cell membranes? a. amoebas b. water molds c. ciliates d. slime molds

Which of the following is a difference between active transport and facilitated diffusion? view available hint(s)which of the following is a difference between active transport and facilitated diffusion? facilitated diffusion can move solutes against a concentration gradient, and active transport cannot.active transport involves transport proteins, and facilitated diffusion does not.facilitated diffusion involves transport proteins, and active transport does not.active transport requires the expenditure of cellular energy, and facilitated diffusion does not.