What Is the Replacement Level for a Population

question 58

Multiple Choice

What is the replacement level for a population?

• A) half of the median population growth rate
• B) double the age-specific birth rate
• C) a fertility rate of 2.1
• D) 20% of the population median age

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Definitions:

Endangered Species

Species of animals or plants that are at a significant risk of extinction due to a rapid decrease in their population or loss of their natural habitat.

Captive Breeding

The process of breeding animals in controlled environments within zoos, aquariums, or breeding centers to preserve species.

Host Mothering

The introduction of an embryo from one species into the uterus of another species, where it implants and develops; the host mother subsequently gives birth and may raise the offspring as her own.

Sperm Banking

Sperm banking is the process of collecting, freezing, and storing sperm for future use in artificial insemination or other fertility treatments.