Fill in the blank below with the word that best completes the sentence. Natural selection leads to
a process of change in a population over time.
DONE
2 of 11
halb

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 an oxidation-reduction reaction? (pictured below)

What kind of crystalline solid is graphite? o a. molecular solid b. metallic solid o c. network solid d. ionic solid