Which land biome has the greatest primary production?
1.Coniferous forest
2.Temperate grasslands
3.Temperate deciduous forests
4.Tropical forests
4
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Vascular plant bodies typically consist of a(n) ____ shoot system and a ____ root system
a. photosynthetic; photosynthetic b. nonphotosynthetic; photosynthetic c. photosynthetic; nonphotosynthetic d. nonphotosynthetic; nonphotosynthetic e. heterotrophic; phototrophic
You have determined the nucleotide and amino acid sequences of a protein involved in feline leukemia. You now want to test the function of this protein in your feline lymphoma cell line
What technique might you use to test the function of the protein? A) affinity chromatography B) targeted gene disruption C) translational fusion D) two-dimensional gel electrophoresis E) co-immunoprecipitation
Amphibians evolved from
A. bass and bluegill. B. sturgeon and catfish. C. lobe-finned fishes with lungs. D. sharks. E. darters.
Which statement concerning bryophyte reproductive cells is true?
A. The gametophytes are shorter-lived than the sporophyte. B. Spores and gametes are produced by mitosis. C. Their features constrain bryophyte stature. D. The gametophytes produce nonmotile sperm. E. Spores and gametes are both used for sexual reproduction.