Ecology Practice Quiz

When a specific population grows past the ecosystem's carrying capacity, what happens to the population?

• Density Independent limiting factors start to occur resulting in the population going farther above carrying capacity.
• Density Dependent limiting factors start to occur resulting in the population going back below carrying capacity.
• The population will go extinct due to lack of resources
• The population grows then finds a new carrying capacity

What is the carrying capacity of the graph?

• around 500
• more than 500
• less than 500
• around 600

Which of the graphs below shows logistical growth?

• 
• 
• 
• 
• 

Which of the graphs below shows exponential growth?

• 
• 
• 
• 
• 

If a disease destroying barley plants in a field swept through an ecosystem, what would happen to the barley eating bird population in the the field ?

• The bird population would stay the same
• The bird population would infinitely increase
• The bird population would decrease

What is taking place at letter B?

• Fast increase in population

• Slow increase in populations

• Decrease in population

• Population is reaching carrying capacity.

According to the graph, what scenario best fits?

• The Owl Population increased because there were more mice to eat.

• The Mice population increased because Owl population decrease, so there were less owls hunting mice.

What factor describes when populations increase because animals are moving into a population?

• Emigration
• Limiting Factors
• Immigration
• Exponential Growth

In which month(s) did the Cottontail Rabbits reach their carrying capacity?

• January and February

• March and May

• April and January

• April and May

Why is biodiversity important to ecosystems?

• It allows ecosystems to adapt to changing climates.

• It establishes the separate ecosystems within a biome.

• It has created antibiotic-resistant bacteria

• It provides each organism with one specific role to ensure there is no competition.