Use the Given Growth Rate to Find the Approximate Doubling

question 8

Multiple Choice

Use the given growth rate to find the approximate doubling time and to predict the population in 50 years of a growingsuburban town (based on a current population of 100,000) .
-Use the average growth rate between 1970 and 2000, which was about 0.7%.

• A)95 years; population in 50 years = 123,114
• B)100 years; population in 50 years = 141,421
• C)102 years; population in 50 years = 151,572
• D)110 years; population in 50 years = 131,951

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Definitions:

Lizards

A widespread group of squamate reptiles, with over 6,000 species, ranging across all continents except Antarctica.

Therapsids

A group of mammal-like reptiles of the Permian period; gave rise to the mammals.

Chordates

A large phylum of animals that includes all vertebrates as well as several closely related invertebrates, characterized by the presence of a notochord at some stage of their development.

Monotremes

Egg-laying mammals, such as the platypus and echidna, representing a unique branch of the mammalian tree.