Populations

What is the best definition of a population?

• The number of plants and animals there are in an area
• The number of different species in one place at one time
• The number of individuals of one species living in the same place
• The total number of all organisms in an ecosystem

Population density can be best described as:

• The amount of deaths that occur in a population

• The amount of births that occur in a population

• The amount of individuals in a given space.

• The amount of available nutrients in an ecosystem

The maximum amount of organisms of a species that can be supported by an environment is:

• exponential growth

• logistic growth

• population growth

• carrying capacity

Typical population growth is described as:

• Logarithmic growth

• Logistic growth

• Linear growth

• Exponential growth

Which of the following would cause a population to increase in size?

• Emigration

• Decreased Birthrate

• Immigration

• Increased Deathrate

Which of the following is NOT an example of a Density Dependent Factor?

• Parasitism

• Natural Disasters

• Predation

• Competition

A density-independent factor happens:

• depending on the number of predators hunting prey

• depending on the size of the population

• if there are no resources left in a habitat

• regardless of the size of the population

What is the carrying capacity for this sheep population?

• 1.8 million
• 1.25 million
• 1.6 million
• 1.o million

At what hour did the bacterial population carrying capacity?

• 1-7 hours

• 8-14 hours

• 14-17 hours

• 18 hours - 24 hours

 When an environment has reached its carrying capacity for a certain population, which of the following is true? 

•  Growth and immigration rate is equal to death and emigration rate. 
•  Growth and immigration rate is greater than death and emigration rate. 
• Growth and immigration rate is less than death and emigration rate. 
• Growth rate is exponential.