Introduction of alien or exotic species into new ecosystems can occur through
A. accidental transport by ship or plane without anyone's knowledge.
B. agricultural and horticultural activities.
C. colonization when new settlers arrive in an area.
D. All of the choices are correct.
Answer: D
You might also like to view...
What is the role of NADH in glycolysis?
a. NADH phosphorylates pyruvate. b. NADH catalyzes the transformation of dihydroxyacetone-phosphate. c. NADH binds and carries electrons. d. NADH destabilizes fructose.
Which of the following organisms lack membrane bound organelles?
a. plants b. animals c. prokaryotes d. fungi
The ecosystem that would most likely have a high net primary productivity is a
A. desert. B. tropical rain forest. C. boreal forest. D. temperate forest. E. tundra.
Some organisms are able to reproduce both sexually and asexually.
Answer the following statement true (T) or false (F)