The area of the Energy pyramid denoted by the letter "b" represents the

• primary consumer

• secondary consumer

• tertiary consumer

• producer

The graph below represents population growth where there are plenty of resources and very few limiting factors on population growth.

• Logistic Growth Curve

• Exponential Growth Curve

Which graph best illustrates the growth of a population introduced into an environment with limited resources?

• A

• B

• C

• D

Which will most likely result in a negative growth rate in the human population of a country?

• The death rate is higher than the birth rate.

• The birth rate is higher than the death rate.

• The country has improved economic conditions.

• The country has made improvements in sanitation.

The human population is increasing every day. How does this increase in population affect the natural resources that maintain humans?

• 
  It increases the supply of resources.
• 
  It decreases the amount of resources.
• It results in less demand for resources.
• 
  It improves the quality of the resources.

What abiotic factors affect the growth and survival of seaweed, small fish, and sharks? 

• sunlight, temperature, and minerals 
• sunlight, pH, and type of seaweed 
• number of decomposers, carbon dioxide, and nitrogen 
• number of herbivores, carbon, and food 

Limiting factors are sometimes helpful because they can keep the population from getting too large.

• True
• False

A non-native plant that causes problems to the environment that it is introduced to is called __________.

• Invasive
• Weed
• Indigenous
• Purple

All members of one species in a certain area.

• Population
• Limiting Factors
• Immigration
• Birth Rate

Occurs when organisms MOVE in from another environment.

• Immigration
• Emmigration