the size of a population of mice on an isolated island has remained constant for 50 years. what is the average number of offspring that each breeding pair produce during their lifetime that survive to reproductive maturity and reproduce?
2007-03-08 15:23:11 · 4 answers · asked by missy862002 1 in Science & Mathematics ➔ Biology
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If it is remaining constant and there are 2 mice in a breeding pair, each pair must have 2 offspring that survive to reproductive maturity and reproduce.
2007-03-08 15:31:35 · answer #1 · answered by Beef 5 · 1⤊ 0⤋
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2007-03-08 23:46:04 · answer #2 · answered by ecuadorianhoneybee 1 · 0⤊ 1⤋
this is a pure logic question. if the population is constant for 50 years then that must mean each pair of breeders have to have 2 mice that survive to maturity and reproduce (assuming that males and females are equal in number and they all find a mate) this would make sense because if the population is unchanged then each PAIR would have to have 2 surviving offspring to replace them when they die
2007-03-08 23:34:25 · answer #3 · answered by lilxchinkie 2 · 0⤊ 0⤋
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The 2 mice in a breeding pair must essentially replace themselves during their lifetime in order to maintain the size of the population.
2007-03-08 23:34:14 · answer #4 · answered by BP 7 · 0⤊ 0⤋