Birds are living representatives of which lineage?
a. lepidosaurs
b. anapsids
c. archosaurs
d. synapsids
Answer: c. archosaurs
Biology & Microbiology
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When the photosynthetic organisms evolved the ability to split water, they produced _____ as a waste material, which was poisonous to most of the cells then alive
a. hydrogen gas b. hydrogen sulfide c. water d. carbon dioxide e. oxygen
Biology & Microbiology
Which of the following are vestigial structures?
A) Wings of bats B) Fish fins C) Hoofs of horses D) Pelvic bones of whales E) Vertebral columns in snakes
Biology & Microbiology
Unlike Giardia, most members of Fornicata are harmless symbionts.
Answer the following statement true (T) or false (F)
Biology & Microbiology
Which cell type ranges in size from about 10-100 µm, has 80s ribosomes, and has internal compartments bounded by membranes?
A. Bacteria B. Archaea C. Eukarya
Biology & Microbiology