Ecology Quiz 2 Review

An organism that is killed and eaten by another organism

• Predator
• Prey
• Competition
• Adaptation

Which of the following would be considered to be prey?

• an animal that has to hunt for its food
• an animal that is eaten by another animal
• an organism that makes it own food
• an organism that feeds on the blood of another animal

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A consumer that hunts is called:

• a producer.
• an omnivore.
• a predator.
• a herbivore.

Remora are small fish with a sucker-like organ that allows them to attach themselves to larger animals like a shark.  By doing this, the remora is able to gain protection from the presence of the shark while helping the shark stay clear from parasites.  This relationship shows _?

•  parasitism
• mutualism       
• commensalism
• predation

Gobies are a type of small fish that live in small burrows.  Sometimes these burrows are created and maintained by burrowing shrimp.  The goby shares the burrow with the shrimp and uses it to protect its eggs.  The shrimp has poor eyesight, but monitors the behavior of the goby with its antennae.  When it feels the shrimp retreat into the burrow away from danger it quickly follows.  This relationship demonstrates which of the following? 

•  parasitism  
• mutualism 
• commensalism 
• predation

What factor would cause animals of the same species to begin competing with one another?

• increase in precipitation         
• the presence of decomposers
• the introduction of a new food source
• limited supply of resources

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In an ecosystem, members of the lizards are observed eating members of the insect population.  In this same ecosystem, birds are also observed using insects as a food source.  The relationship between lizards and birds would best be described as –

• predator
•  competitive
• parasitic
• mutualistic

_____________ is when more than one individual or population in an ecosystem relies on the same limited resources.

• ecosystem

• population

• competition

• organism

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What is competition in an ecosystem?

• How all the living and nonliving things in an area interact.

• A single, self-contained living thing

• More than one individual or population that depends on the same limited resources.

This type of interaction occurs when 2 organisms live closely together for survival.

• Symbiosis

• Competition

• Predation

• Cymbalosis