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Living Environment Regents August 2010 Question 27 |
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NYS Living Environment Regents August 2010
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Correct answer: (2) There are few native predators of rabbits.
When there are few predators of an organism, then that organism faces less risk in survival. Reproduction rate would be high, and mortality rate (usually caused by predation or shortage of food) would be low.
Incorrect answers:
(1) Rabbits have a high metabolic rate.
The higher the speed of metabolism, the more food would be needed in order for the population of rabbits to survive. Thus, metabolic rate is not a factor in the predominance of rabbits in the area.
(3) Additional rabbit species have been introduced.
If additional rabbit species were introduced, then there would be more species to compete with the resources available. This will eventually lead to death of some rabbits, instead of increase in number.
(4) There is an increase in rabbit competitors.
If there are many competitors for the rabbits, then there would be shortage of food, which may lead to death of a number of rabbits and its competitors.
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