The pigment that absorbs light energy (photons) in photosynthesis is
A) rubisco.
B) chlorophyll.
C) PEP.
D) CAM.
B
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Chromosomal islands contain clusters of genes for
A) DNA repair and replication. B) virulence, biodegradation of pollutants, and symbiotic relationships. C) catabolic and anabolic reactions. D) antibiotic resistance.
What structural characteristic allows sac fungi and club fungi to include larger-bodied species than other fungal groups?
What will be an ideal response?
Habitat fragmentation can reduce biodiversity by ____
a. withdrawing an essential resource from native species b. sterilizing for pollution control c. eliminating vast tracts of forests d. introducing more native species into a habitat e. decreasing human use of natural resources
How does DDT in the environment affect many birds?
A. chronic liver failure in adults B. stunted growth of chicks C. neurological degeneration D. decreased reproductive rate