What is likely to be the greatest challenge facing the zoned reserve systems of Costa Rica?
A) high predation by jaguars
B) the impossibility of ecotourism
C) decreasing soil erosion
D) a growing human population
Answer: D
Biology & Microbiology
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a. mechanoreceptors b. chemoreceptors c. thermoreceptors d. photoreceptors e. proprioreceptors
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Inversions are movements of DNA from one chromosome to another
Indicate whether the statement is true or false
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These sharply pointed teeth on the sides of the mouth tear food
A) molars B) premolars C) canines D) incisors
Biology & Microbiology
What is the natural reservoir of Clostridium tetani?
a. air b. water c. soil d. mammals
Biology & Microbiology