Biology, 20.03.2020 09:59 dbegay36

Vernon is studying the population of deer in a tract of forest. He gathers the following data.
Birth rate: -50 deerlyear
Death rate: -70 deerlyear
Which additional observation would support the conclusion that the deer population is NOT changing size from year to year, meaning that the
net population change is 0?
A
About 20 deer per year immigrate to the tract of forest.
B. About 20 deer per year emigrate from the tract of forest.
C. The average life span of a member of the deer population is 20 years.
D. If a deer survives its first year of life, its average life span is 20 years.

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Vernon is studying the population of deer in a tract of forest. He gathers the following data.
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