The polychaetes differ from other classes of annelids by possessing:
A. setae
B. giant axons
C. parapoida
D. body segments
E. none of the choices provided
C. parapoida
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Photorespiration occurs because __________
A. there is more O2 than CO2 in the atmosphere B. rubisco is a slow catalyst C. rubisco is a selective catalyst D. there is more O2 than CO2 and rubisco is a slow catalyst E. there is more O2 than CO2 and rubisco is a selective catalyst
A systematic compilation of mortality and survival data for a population is called a(n)
A) age pyramid. B) life table. C) cohort group. D) probability summary.
A linear depiction of energy flow in an ecosystem is a(n):
a. food web. b. food chain. c. trophic web. d. ecological pyramid. e. pyramid of numbers.
Which sentence best describes what occurs during bacterial transformation?
a. Bacteria take up pieces of DNA through infection of a virus. b. Bacteria replicate DNA molecules. c. Bacteria make replicate copies of one another. d. Bacteria take up pieces of DNA that are released as other cells disintegrate.