7SCI: communities and populations

A symbiotic relationship in which one species benefits and another is harmed is

• bipartisan

• commensalism

• mutualism

• parasitism

A symbiotic relationship in which one species benefits and the other is not helped or harmed

• bipartisan

• commensalism

• mutualism

• parasitism

Which statement is a description of a fish's habitat

• all other members of its species

• organisms it eats

• where it lives

The largest number of individuals of one species that an ecosystem can support over time

• biotic potential

• carrying capacity

• limiting factor

Which is a description of a niche?

• a relationship between one organism and another

• the role or function of an organism in a habitat

• the physical place where an organism lives

A symbiotic relationship in which two species in a community benefit each other

• bipartisan

• commensalism

• mutualism

• parasitism

Something that can restrict the growth of a population

• biotic potential

• carrying capacity

• limiting factor

All of the following are examples of limiting factors for a population except...

• space
• food
• time
• weather

Which of these relationships is an example of parasitism?

• a bird building a nest on a tree branch
• a bat pollinating a saguaro cactus
• a flea living on a cat's blood
• ants protecting a tree that produces the ants' only food

The series of progressive changes that occur in a community over time is called

• natural selection
• ecology
• commensalism
• succession