The biological species concept has been widely adopted, but it also has some practical difficulties. Which of the following is not one of these difficulties?
A. The concept is poorly defined.
B. The concept cannot be applied to extinct species.
C. Many populations are allopatric.
D. The concept does not apply to clonal organisms.
E. Testing reproductive isolation in the lab is not always feasible.
Answer: A. The concept is poorly defined.
You might also like to view...
During which stage of cellular respiration is the majority of the ATP produced?
A. Electron transport chain B. Fermentation C. Citric acid cycle D. Glycolysis
Many dinosaur movies depict huge tree-like plants growing out of swamps. To what group would these "trees" likely belong? Select all correct choices
A. lycophytes B. cycads C. angiosperms D. bryophytes
Most digestion take place in the
a. stomach. b. small intestine. c. large intestine. d. stomach and small intestine equally. e. small and large intestine equally
Which of the following gymnosperm groups has the most efficient water-conducting cells?
a. Coniferophyta b. Ginkgophyta c. Cycadophyta d. Gnetophyta e. Pteridophyta.