The process of photosynthesis requires the raw materials
A. O2 and H2O.
B. CO2 and H2O.
C. sugar and CO2.
D. H2O and sugar.
B. CO2 and H2O.
Biology & Microbiology
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The natural habitat of Chryseobacterium sp. can best be described as the:
a. mucous membranes of animals. b. gastrointestinal tract of humans and other animals. c. natural environment. d. genitourinary tract of animals.
Biology & Microbiology
What percentage of the world's tropical forests has been cut down for cropland, fuel wood, grazing land, and timber?
a. 20 percent b. 30 percent c. 40 percent d. 50 percent e. 60 percent
Biology & Microbiology
The sex chromosome complement of a normal human female is
A) XO. B) XX. C) XY. D) YY.
Biology & Microbiology
Concordance refers to the frequency with which members of a twin pair express a ________ trait
A) different B) mutated C) similar D) unrelated
Biology & Microbiology