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

Biology & Microbiology

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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

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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.

Biology & Microbiology

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.

Biology & Microbiology

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.

Biology & Microbiology