The carbon found in carnivores would follow which of the following paths?
A. plant ® air ® carnivore
B. herbivore ® plant ® air ® carnivore
C. air ® bacteria ® plant ® herbivore ® carnivore
D. air ® plant ® herbivore ® carnivore
D. air ® plant ® herbivore ® carnivore
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pH buffers
A. minimize fluctuations in the pH of solutions. B. are usually weak acids and bases. C. are common in biological fluids. D. limit major shifts in the amount of H+ and OH- in solution. E. All of the choices are correct.
Salt marsh plants play an important ecological role in
a. recycling nutrients. b. stabilizing sediments. c. filtering run-off from coastal areas. d. habitat for small animals. e. all of the above
Modern botanists think that all plants evolved from a common ancestor that was an ancient green algae. What is the
best explanation for this hypothesis? a. They are autotrophs. b. They live on land. c. They have green leaves. d. They are green like green algae. e. They share many biochemical and metabolic traits.
Diabetes has been linked to: