Chapters 5 & 6 Exam

Select all that apply. Ecologists study populations by examining their:

• Geographic range
• Density
• Distribution
• Age Structure
• Growth Rate

What are the main distribution patterns?

• Random
• Clumped
• Uniform
• All of the above

What determines how quickly organisms immigrate and emigrate?

• How far they travel
• How quickly they move
• Whether or not human activity moves them around
• How strongly they feel about a particular place

What is phase I within logistic growth?

• Population grows rapidly. Individuals grow and reproduce rapidly.
• Growth remains constant, but overtime becomes stagnate.
• Growth stops. Population size stabilized at carrying capacity.
• Growth Slows. Population still increase, but the rate of increase slows down, so the population grows more slowly.

What is phase III within logistic growth?

• Population grows rapidly. Individuals grow and reproduce rapidly.
• Growth remains constant, but overtime becomes stagnate.
• Growth stops. Population size stabilized at carrying capacity.
• Growth Slows. Population still increase, but the rate of increase slows down, so the population grows more slowly.

What is phase II within logistic growth?

• Population grows rapidly. Individuals grow and reproduce rapidly.
• Growth remains constant, but overtime becomes stagnate.
• Growth stops. Population size stabilized at carrying capacity.
• Growth Slows. Population still increase, but the rate of increase slows down, so the population grows more slowly.

The number of individuals of a species that an environment can support. This describes what?

• Limiting Factors
• Growth within a population
• Carrying Capacity
• All of the above

Why does population growth stabilize?

• Because a combination of factors limits their population size.
• Because the factors of the population are over capacity.
• Because limiting factors cause the population to no longer grow.
• None of the above

Any factor that controls the growth of a population. What does this describe?

• Carrying Capacity
• Logistic Growth
• Limiting Factors

Select all density-dependent limiting factors.

• Competition
• Parasitism
• Stress from overcrowding
• Predation
• Herbivory