Symbiotic Relationships

Which symbols best describe mutualism?

• +,+
• +,-
• +,0
• -,0

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

• True
• False

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 cat have this type of relationship.

• mutualism
• parasitism
• commensalism
• competition

A clownfish and sea anemone have this type of relationship.

• mutualism
• parasitism
• neutralism
• competition

A frog eats a fly. The frog and fly are demonstrating ________.

• mutualism
• competition
• predator/prey
• parasitism

Red-billed oxpeckers  feed on parasites found on an Impala. The impala gets rid of parasites and the red-billed oxpeckers get yummy dinner. This is an example of _______.

• commensalism
• mutualism
• neutralism
• competition

If the population of a certain predator increases, there is often _______ its prey

• a decrease the population of
• an increase of the population of 
• great news for its prey of
• no  impact found on

Any thing or organism that regulates the size of a population of another organism is known as __________.

• a limiting measure
• a limiting factor
• factorization
• materialization of precipitation

If there is a decrease in a limiting factor, the organism could die.

• true
• false