Population Dynamics

Which of the following could be a density-independent limiting factor in the desert?

• number of prey

• food supply

• parasitism

• rainfall

What type of population growth is shown in the graph?  

• logistic growth
• logical growth
• exponential growth
• density-dependent growth

What type of population growth is shown in this graph?

• logistic growth

• exponential growth

• logical growth

• density-independent growth

Which of the following is density-independent limiting factor?

• disease

• competition

• earthquake

• predation

Diseases may spread more rapidly when an area is crowded, so disease is considered to be a

• type I survivorship curve
• population crasher
• density-dependent limiting factor
• population enhancer

When there are more births than deaths the population size will increase

• True

• False

Which of the following factors does not affect a population's size?

• moon phases

• reproductive success

• changes in the environment

• availability of resources

Immigration occurs when

• Individuals leave an environment

• Individuals join a population

• Individuals are born or die

​Which BEST describes carrying capacity?

• ​Maximum number of species that can be supported by an ecosystem

• ​Number of organisms living together in an area

• ​Types of organisms that can be supported by an ecosystem

• ​Factors like food, shelter, and energy used by the number of species in an ecosystem

​What is the possible impact of the declining number of native trees in the forest ecosystem?

• ​Decrease in the shelter of native birds and other animals.

• ​Other plants will have more food.

• ​Increase the resiliency of the forest.

• ​Other organisms depending on native trees will look for other alternatives in the forest.