Interactions Among Living Things ch. 14.3 17-18

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

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

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

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

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

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

When a mosquito bites you, you are the __________ and the mosquito is the  ____________.

• host, hostess
• parasite, host
• host, parasite
• prey, predator

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

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

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

• competition
• mutualism
• parasitism
• predation

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

• competition
• symbiosis
• predation
• mutualism

Which of the following is an example of a predator adaptation?

• a porcupine's needles
• a shark's powerful jaws
• a frog's bright colors
• a plant's bright flowers

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

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

Mutualism, commensalism, and parasitism are the three types of

• symbiotic relationships.
• predation.
• competition.
• prey adaptations.