Community and Population Ecology Practice Quiz

A tapeworm and a cat have this type of relationship.

• mutualism
• parasitism
• commensalism
• competition

Type of symbiosis: Hummingbirds feed on nectar from flowers. The flowers are pollinated by hummingbirds as they move from flower to flower.

• commensalism

• mutualism

• parasitism

• predation

What level of ecological organization would include all squirrels that live in the same area?

• biome

• community

• ecosystem

• population

All the different populations that live together in an area make up a(n)

• community.
• ecosystem.
• organism.
• species.

Which of the following represents several species of brightly colored, harmless snakes looking like poisonous coral snakes?

• commensalism
• mutualism
• batesian mimicry
• mullerian mimicry

Many poisonous animals are brightly colored (red or orange) as a warning to predators.  The special coloration is called

• Mullerian mimicry
• Batesian mimicry
• aposematic coloration 
• mutualistic coloration

The concept that predators can affect the size and distribution of other animals is known as 

• predation
• herbivory
• tolerance
• limitation

Starfish are considered ___ because if the species is negatively affected, it’s going to have a disproportionately greater effect on the whole ecosystem.

• a keystone species
• an invasive species
• an exotic species
• an introduced species

An ocean bay food web is pictured.

Imagine a sea otter moves to the area. The sea otter eats crabs. What would happen to the ecosystem?

• The ecosystem would stay the same

• The sea duck population will decrease (go down)

• The crab population will increase (go up)

• The sea duck population would increase (go up)

Pictured is a food web.

Which organism is an omnivore?

• Deer

• Berries

• Black bear

• Red Fox