Some prey species discourage predators with chemicals that are poisonous, irritating, foul smelling, or bad tasting. What is this called?
A. chemotoxicity
B. biological warfare
C. chemical warfare
D. behavioral warfare
E. behavioral strategies
Answer: C
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Complete the following nuclear equation: ? ? Rn + He
A) Ra B) At C) Po D) Rn E) none of the above
If the DIRECTION OF DIP of a bed is east, its STRIKE DIRECTION must be:
a) due west b) north-south c) North 45° East d) North 45° West e) dip direction of a bed is not related to the strike direction
Charles Darwin suggested that a driving force of evolution was ____
a. reproduction b. small genetic variation c. isolation d. large population size e. mutations
A major difference between a barrier island and a barrier spit is
A) a barrier spit is connected to the mainland, whereas a barrier island is not. B) barrier spits are anthropogenic, modeled after natural barrier islands. C) a barrier spit is a depositional feature that connects the barrier island to the mainland. D) one of regional terminology, a barrier island and a barrier spit are the same thing.