A species goes extinct without any clear, single cause.
A. hotspot
B. habitat loss
C. edge effects
D. megafaunal extinction
E. extinction vortex
E. extinction vortex
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The normal flora of the adult large bowel consists predominantly of:
a. anaerobic species. b. Staphylococcus. c. Enterococcus. d. Enterobacteriaceae.
Which turtle has a diet of seagrass?
a. Kemp's ridley b. Leatherback c. Hawksbill d. Green sea turtle e. Loggerhead
Refer to the accompanying figure. Secretion of potassium and ammonium ions occurs mainly in the portion labeled as:
a. 2.
b. 5.
c. 7.
d. 9.
e. 10.
The apple host race (or biotype) of the Rhagoletis pomonella fruit flies evolved after non-native apples were colonized by individuals of R. pomonella's hawthorn race (hawthorn is the original native host of R. pomo-nella)
If the two host races should become two different species over time, would this case represent an example for cospeciation? Briefly justify your answer. What will be an ideal response?