What is not used as evidence for classifying different populations as multiple species according to the biological species concept?
A. Phylogenetic trees of sympatric species that show divergence into monophyletic groups
B. Phenotypic markers that indicate reduced gene flow
C. traits that affect pollinator attraction
D. Successful production of environmentally fit offspring through hybridization
Answer: D. Successful production of environmentally fit offspring through hybridization
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In which of the following divisions of Archaea would you be most likely to find organisms that flourish in hot, salty environments?
A. Cyanobacteria B. Euryarchaeota C. Thaumarchaeota D. Crenarchaeota
At first glance cycads and palm trees look very similar. How are they distinguished?
A. Cycads have cones and palm trees, an angiosperm, have flowers. B. Cycads have cones, and palm trees, a gnetophyte, have single large fruits. C. Cycads have bare seeds and palm trees produce cones. D. Cycads are fertilized by wasps and palm trees are fertilized by water. E. Cycads are small shrubs and palm trees are trees.
Pioneering species __________
a. migrate seasonally b. tend to have fast reproductive rates c. grow slowly in disturbed areas d. migrate seasonally and tend to have fast reproductive rates
Cerebral edema would be treated with a(an) ________ intravenous solution of mannitol.
Fill in the blank(s) with the appropriate word(s).