Some members of this class have lungs and can use them to breathe air
A. Actinopterygii
B. Cephalaspidomorphi
C. Chonrichthyes
D. Myxini
E. Sarcoptergii
Answer: E. Sarcoptergii
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Photosynthesis evolved first in which of the following lineages?
a. Prokaryotes b. Archaea c. Eukaryotes d. Photosynthesis evolved simultaneously in all lineages
You are a botanist surveying a previously unstudied island. You discover a plant that has large blue
flowers and a woody fruit. Into which group should you classify this plant?
a. Gnetophytes b. seed plants c. gymnosperms d. angiosperms e. cycads
Diatoms are mostly asexual members of the phytoplankton. Diatoms lack any organelles that might have the 9 + 2 pattern. They obtain their nutrition from functional chloroplasts, and each diatom is encased within two porous, glasslike valves
Which question would be most important for one interested in the day-to-day survival of individual diatoms? A) How do diatoms get transported from one location on the water's surface layers to another location on the surface? B) How do diatoms with their glasslike valves keep from sinking into poorly lit waters? C) How do diatoms with their glasslike valves avoid being shattered by the action of waves? D) How do diatom sperm cells locate diatom egg cells?
The spirochete of relapsing fever changes cell surface antigens many times in order to avoid destruction by the immune response.
Answer the following statement true (T) or false (F)