27. Protists

Which characteristic is/are shared by most diatoms, golden algae, and brown algae at least at some stage of their life cycles?

The red algae are characterized by __________.

How do ciliates generate genetic variation?

Alternation of generations __________.

In a life cycle with alternation of generations, multicellular haploid forms alternate with a. unicellular haploid forms. b. unicellular diploid forms. c. multicellular haploid forms. d. multicellular diploid forms.