What is meant by the "law of competitive exclusion"?
a. When one species successfully dominates an ecological niche, it will subdue all other species in the area.
b. When two or more species cohabit in the same area, they will each tend to specialize in a subset of foods toallow peaceful coexistence
c. When two closely related species compete for the same niche, one will bring about the other's extinction.
d. In a balanced ecological niche, there will be no competition between species.
e. Species that begin competing for food supplies will eventually begin to compete for each other's mates as well?competition spreads.
c
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Peoples who are now minority groups in state societies but who were formerly independent and have occupied their territories for a long time are called __________
a. primitive societies b. Indian societies c. colonial societies d. indigenous societies
Refer to the figure below. Undertaking the 30th unit of action, yields a surplus of benefit of ________.
A) $70 B) $20 C) $50 D) $30
The diet of Homo rudolfensis
A) was probably based on hard to chew food items judging from its large molars B) was probably based on hunting judging from its tool use C) was probably based on roots and tubers D) is unknown because of a lack fossilized teeth E) was probably based on fruit and leaves judging from its small molars
Of the following forms of marriage, the rarest is __________
A) polyandry B) monogamy C) the levirate D) polygyny