Ecosystems Test

Cattle egrets foraging in fields among cattle. The egret gets easy access to food and the cattle don't care if they are there or not.

• mutualism
• commensalism
• competition
• parasitism

A tapeworm and a dog have this type of relationship.

• mutualism
• parasitism
• commensalism
• competition

Ostriches and gazelles feed next to each other. They both watch for predators. Because the visual abilities of the two species are different, they can each identify threats that the other animal may not see as readily. Both species benefit.
This is an example of which type of symbiosis?

• Commensalism
• Mutualism
• Parasitism
• IDK

One organism hunts and eats another organism.

• predation

• mutualism

• carnivore

• parasitism

This occurs when niches overlap between species and they have to compete for resources.

• competition

• interspecific

• parasite

• intraspecies

An organism that creates its own food from light energy or chemicals found in its environment

• herbivore

• omnivore

• producer

• predator

Which organism has the most energy in this food web?

• rabbit

• snake

• hawk

• grasses

Which factor is an abiotic factor?

• Lion

• plant

• water

• c and d

Biotic factors are the

• Non-living parts of an ecosystem.

• Weather and climate.

• Living organisms in an ecosystem

What is a decomposer?

• an organism that breaks down dead organisms for energy

• an organism that makes its own food

• an organism that eats other organisms