Interactions Among Living Things

Interactions Among Living Things

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Multiple Choice

Process by which organisms that adapt best to the environment are most likely to survive

• Natural selection

• Adaptation

• Competition

• Predation

Multiple Choice

The behaviors and physical characteristics of species that allow them to live successfully in their environment are called

• habitats.
• limiting factors.
• biotic factors.
• adaptations.

Multiple Choice

An organism's particular role in its habitat, or how it makes its living, is called its

• carrying capacity.
• ecosystem.
• competition.
• niche.

Multiple Choice

The struggle between organisms to survive in a habitat with limited resources is called

• competition.
• predation.
• symbiosis.
• parasitism.

Multiple Choice

What is the squirrel in this image?

• Adaptation

• Predator

• Prey

• Predation

Multiple Choice

Which of the following describes an interaction in which one organism kills and eats another?

• competition
• symbiosis
• predation
• mutualism

Multiple Choice

When a jellyfish paralyses a tiny fish with its poisonous tentacles, the jellyfish is the 

• predator.
• prey.
• host.
• parasite.

Multiple Choice

Individuals with characteristics that are poorly suited to an environment are ________ likely to survive

• less
• more

Multiple Choice

Symbiosis where one organism benefits and one is harmed

• mutualism
• parasitism
• commensalism

Multiple Choice

Symbiosis where one organism benefits and one is unaffected

• mutualism
• parasitism
• commensalism

Multiple Choice

Symbiosis where both organisms benefit

• mutualism
• parasitism
• commensalism

Multiple Choice

When a flea is living on a dog, the dog is the 

• parasite.
• host.
• predator.
• prey.

Multiple Choice

The bacteria that live in your intestine and help break down food are an example of which type of interaction?

• competition
• mutualism
• parasitism
• predation

Multiple Choice

A close relationship between two species that benefits at least one of the species is called

• natural selection.
• symbiosis.
• adaptation.
• competition.