Exam 1

Question 1

Explain the nested, hierarchical classification of living things

Question 2

interpret phylogenies, identifying most recent common ancestors, sister taxa and clades

Question 3

explain how classification and phylogenies are related

Question 4

what is the key differences between members of the groups bacteria and archaea? (discuss cellular structures and ecological differences) What is meant by gram-positive and gram-negative?

Question 5

what is phylogeny? what does it depict? How is time read on phylogeny?

Question 6

what is a monophyletic group? what is the significance of taxonomists, including only monophyletic groups in biological classification?

Question 7

Define: Taxonomy, Biological Classification, Systematics

Question 8

What are the chief differences between prokaryotes and single-celled eukaryotes (protists)? How do we think that endosymbiosis played a role in the evolution of simple, single-celled eukaryotes from prokaryote ancestors?

Question 9

What is meant by a life cycle with alternation of generations? Define sporophyte, gametophyte, spore, and zygote. What parts of the life cycle have diploid and haploid cells?

Question 10

Describe the similarities and differences among the protists feeding modes: autotrophs, heterotrph, mixotroph