Ecology Overview Quiz

Plants are an example of

• a biotic factor

• an ecosystem

• an abiotic factor

• immigration

Select option that is in the correct order:

• Populations make up ecosystems which make up communities which make up organisms

• Organisms make up populations which make up communities which make up ecosystems

• Organisms make up communities which make up populations which make up ecosystems

• Populations make up communities which make up ecosystems which make up organisms

Select all the ways that a population can change

• births

• emigration

• deaths

• immigration

The population density is the size of the population in a certain _______.

• Time of day

• City

• Year

• Space

What is a limiting factor?

• Something that allows a population to continue to grow

• Something that makes a species unique

• Something that runs out first

• Something necessary for survival

What is carrying capacity?

• The maximum number of individuals an area can support

• All of the biotic and abiotic factors in an ecosystem

• The combined death rate and birth rate of a population

• The temperature at which water boils

In the graph, which curve represents a species in which most individuals survive their entire lives and die at an older age?

• Type 1

• Type 2

• Type 3

• None of these

Which is an example of an adaptation?

• Sharks migrate to warmer waters in the winter

• As a wolf population increases, the moose population decreases

• An unusually cold winter causes the squirrel population to decrease

• A koala eats only eucalyptus leaves, and will die if they run out

What is a niche?

• The maximum number of individuals an area can support

• A species' unique place in its ecosystem

• A physical or behavioral change which allows a species to be more competitive

• A species which eats only plants

Why does an energy pyramid get smaller as you move toward the top?

• Populations are larger

• Populations are more affected by temperature changes

• Less energy is available as it has been used for living

• More animals have been eaten