What is the function of the dominance hierarchy within a group of animals?
A) Increase fighting among members of a population
B) Eliminate competition
C) Minimize aggression
D) Limit the size of the population
E) Increase competition
C
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Triggers for germination of seeds include all of the following except ________
a. water penetrating a seed coat b. desiccation c. smoke or burning d. light or darkness
Under which of the following taxonomic levels do animals fall?
a. species b. order c. class d. kingdom
Crustose, fruticose, and foliose are varieties of
A. lichens. B. mycorrhizae. C. rusts and smuts. D. mushrooms. E. yeasts.
In the 2009 H1N1 “swine flu” pandemic, the influenza virus underwent a(n) ________, which made it especially deadly. Mortality of individuals ________ than 50 years of age was MOST common
a. antigenic drift / older b. antigenic drift / younger c. reassortment / older d. reassortment / younger