Why might increased nutrient availability result in increased species diversity in aquatic systems while it results in decreases in terrestrial systems?
A) Aquatic systems have weaker competitive interactions.
B) Aquatic systems have stronger competitive interactions.
C) Nutrients are diluted too rapidly in aquatic systems.
D) Nutrients are always abundant in terrestrial systems.
A
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An opening at one end of the gastrointestinal tract that functions in mechanical digestion and the breakdown of carbohydrates by secreting amylase.
A) Large intestine B) Stomach C) Esophageal cancer D) Appendix E) Mouth F) Salivary glands G) Rectum H) Cirrhosis I) Gallbladder J) Small intestine
Primary cultivation of most medically relevant organisms and colonial morphologic interpreta-tions are completed at:
a. 6 to 8 hours post inoculation. b. 16 to 18 hours post inoculation. c. 18 to 24 hours post inoculation. d. 16 to 24 hours post inoculation.
In the accompanying diagram, F represents the ____
a. stomach b. liver c. pancreas d. gallbladder e. small intestine
Emerging infectious diseases are due to:
A. Deforestation B. Humans moving to previously inhabited areas C. Mutations in existing microbes D. All of the above