Biology 5.1, Estimating Population Size Gizmo, & 5.2 Review

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Multiple Choice

The number of individuals per unit area is the

• population density

• Geographic Range

• population distribution

• population age structure

Multiple Choice

Populations undergoing exponential growth exhibit a(n)

• S-Shaped Growth Curve

• J-Shaped Growth Curve

• Flat Growth Curve

• Bell Shaped Growth Curve

Multiple Choice

The various growth phases through which most populations go are represented on

• logistic growth curve

• exponential growth curve

• normal growth curve

• boom & bust growth curve

Multiple Choice

Populations experience exponential growth

• following logistic growth

• under extreme stress

• under ideal conditions

• when deprived of nutrients

Multiple Choice

Which of the following does NOT represent a distribution pattern?

• random

• uniform

• clumped

• density

Multiple Choice

You catch, tag, and release 50 fish back into a pond. Then, you catch 25 more fish, 5 of which are tagged. What is the best estimate of the number of fish in the pond?

• 100

• 250

• 400

• 625

Multiple Choice

A pond contains two kinds of fish, trout and bass, of which 20% are bass and 80% are trout. If you catch 5 fish at random from this pond, which would you expect to catch?

• 0 bass and 5 trout

• 1 bass and 4 trout

• 4 bass and 1 trout

• 5 bass and 0 trout

Multiple Choice

A pond contains 1000 fish, 100 of which have been tagged. You catch 10 fish. How many of the fish would you expect to be tagged?

• 0

• 1

• 5

• 10

Multiple Choice

Pond 1 contains 100 fish, 50 of which are tagged. Pond 2 contains 1000 fish, 500 of which are tagged. You catch 10 fish from each pond. Which statement is true?

• There should be more tagged fish in the catch from Pond 1.

• There should be more tagged fish in the catch from Pond 2.

• The catches from both ponds should have about the same number of tagged fish.

• The most likely result is that there will be no tagged fish in either catch.

Multiple Choice

What usually happens to the accuracy of an estimate of population size as the number of fish caught increases?

• The estimate is usually more accurate.

• The estimate is usually less accurate.

• The accuracy of the estimate will not change.

• The estimate is most accurate when the number of fish caught is 50% of the total population.

Multiple Choice

An example of a density-independent limiting factor is

• competition

• disease

• drought

• predation

Multiple Choice

Stress from overcrowding can

• weaken an animal's disease resistance

• cause females to neglect their young

• cause an increase in fighting among animals

• all of these

Multiple Choice

Which of the following limiting factors is illustrated by the presence of wasp larvae on a sphinx moth?

• predation

• competition

• parasitism

• herbivory

Multiple Choice

Competition between the members of the same species is an example of

• a density-dependent limiting factor

• a density-independent limiting factor

• evolutionary change

• overpopulation

Poll

When a new species has no limiting factors, the population will most likely

• die of starvation

• experience runaway population growth