The extensive natural pine forests of the southern Atlantic and Gulf Coasts of the United States are maintained by:
A) grazing.
B) frequent logging.
C) occasional hurricanes.
D) periodic fires.
Ans: D) periodic fires.
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Which of the following kinds of traits was originally used for classifying organisms into taxonomic
categories?
a. morphology and behavior b. DNA and amino acid sequences c. physiology and biochemical pathways d. geography and ecology e. morphology and physiology
This STD typically only infects women and
infected women have a yellowish discharge from their vagina which is also sore and itchy. This STD is
a. chlamydia. b. gonorrhea. c. syphilis. d. trichomoniasis. e. genital herpes
What should the arrow in the following equation be labeled? Sugar + oxygen --> carbon dioxide + water + ATP.
a. photosynthesis b. cellular respiration c. Krebs cycle d. Calvin cycle
Sugars are created during:
A) anaerobic respiration. B) the light reactions of photosynthesis. C) aerobic respiration. D) the Calvin cycle of photosynthesis.