Bio Ch14 Review

Understanding populations is important for protecting ____________________.

• ecosystems
• population
• model
• growth rate

Because individuals in a population usually tend to produce more than one offspring,

• populations tend to increase in size.
• populations remain stable in size.
• individuals tend to die quickly.
• the number of individuals declines rapidly.

The human population began to grow exponentially during the middle of the 1700s due to the

• development of agriculture.
• Industrial Revolution.
• increased immigration.
• decline of the Ice Age.

In his experiments with two species of paramecia, G. F. Gause proved that two competitors cannot coexist on the same limited resources. This outcome demonstrated the principle of

• competitive exclusion.
• intraspecific competition.
• succession.
• symbiosis.

Refer to the illustration. The time period during which the rate of growth of a population would have a negative value is

• period A
• period B
• period C
• period D

Refer to the illustration. The relationship shown in diagram 1 is

• commensalism.
• mutualism.
• competition.
• parasitism.

Refer to the illustration. The relationship shown in diagram 3 is

• commensalism.
• mutualism.
• competition.
• parasitism.

Better sanitation, hygiene, and disease control have had which effect on the human population?

• increased the birthrate
• decreased the death rate
• encouraged emigration
• encouraged immigration

Vaccines have contributed to human population growth by

• lowering the death rate.
• increasing the birthrate.
• increasing the death rate.
• lowering the birthrate.

Like parasitism, herbivory does not usually result in the

• death of the plant.
• benefit of the herbivore.
• death of the herbivore.
• None of the above