1. Click to edit Master title style Click to edit Master subtitle style CLICKER QUESTIONS For CAMPBELL BIOLOGY, NINTH EDITION Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson © 2011 Pearson Education, Inc. Protists Chapter 28 Questions prepared by William Wischusen Louisiana State University Michael Dini Texas Tech University

2. © 2011 Pearson Education, Inc. Which of the following is a correct statement about slime molds? a) Cellular slime molds have haploid zygotes. b) Cytoplasmic streaming helps distribute nutrients and oxygen in cellular slime molds c) In plasmodial slime molds, the haploid condition is the dominant part of the life cycle. d) Cellular slime molds have fruiting bodies that function in sexual reproduction. e) Cellular slime molds form masses when food is scarce, but their cells remain separated.

3. © 2011 Pearson Education, Inc. The greatest number of eukaryotic organisms are a)vertebrates. b)animals. c)plants. d)protists. e)fungi.

4. © 2011 Pearson Education, Inc. Photosynthetic eukaryotes contain both mitochondria and chloroplasts. Which sequence most likely describes the evolution of this group? a)Ancestral anaerobic prokaryote engulfs heterotrophic prokaryote, then engulfs photosynthetic prokaryote. b)Ancestral anaerobic prokaryote engulfs photosynthetic prokaryote, then engulfs heterotrophic prokaryote. c)Both sequences are equally likely.

5. © 2011 Pearson Education, Inc. The amoeboid condition is widely distributed among unrelated eukaryotic taxa. The best explanation for this seems to be a)homology. b)convergence. c)horizontal gene transfer.

6. © 2011 Pearson Education, Inc. Hydrogenosomes, nucleomorphs, mitosomes, and kinetoplasts are all evidence of a)endocytosis. b)serial endosymbiosis. c)endosymbiosis. d)exocytosis. e)vertical gene transfer.

7. © 2011 Pearson Education, Inc. Diatoms are members of the phytoplankton, are surrounded by relatively dense silica cases, and lack flagella. Consequently, what is their greatest challenge to survival?

8. © 2011 Pearson Education, Inc. Red tides can cause massive fish kills. One reason may be that red-tide organisms secrete deadly neurotoxins. Another reason is less direct. What might it be? (HINT: What happens to the bloom when the conditions that caused it to occur are no longer present?)