Population Ecology Exam

What factor describes when populations decrease because animals are moving out of a population?

• Emigration

• Limiting Factors

• Immigration

• Exponential Growth

What does the graph represent?

• Emigration
• Exponential growth
• Immigration
• Logistic Growth

Tags

NGSS.HS-LS2-2

Which limiting factor is independent of the number of individuals in a population?

• competition
• parasitism/disease
• stress
• natural disasters

A population is...

• All members of one species in one area

• All members of all species that live in one area

• All of the living and nonliving things in an area

• None of these

Which factor is a density-dependent limiting factor on the population of a species?

• seasonal variation
• natural disasters
• unusual weather
• predation

The sea otter is a(n) ___________ that influences the survival of many other species in its ecosystem.

• Cute furry creature
• endangered species
• keystone species
• important animal

Tags

NGSS.MS-LS2-4

A species described as r-strategist would definitely NOT have which of the following characteristics?

• clumped population pattern
• much parenting
• many offspring
• random population pattern

________ grow slowly over time, cares for its young over a long period of time and is usually near the carrying capacity of its ecosystem.

• K-strategists
• R-strategists
• Uniform strategists
• environmentalists

Tags

NGSS.MS-LS2-1

J-Shaped curves

• show a decline after an increase
• display populations that have reached carrying capacity
• represent exponential growth
• does not depend on the numbe rof resources

Tags

NGSS.HS-LS2-1

Population increases at a constant rate over time.

• Exponential Growth

• Logistic Growth

• Stable Growth

• Strategic Growth