Ecosystems Interactions

A group of organisms of the same species that live in a particular area is a ____________.

• population
• community 
• predators
• pioneer species

In this relationship, one species benefits while the other species is harmed.  An example is a flea living on a cat.

• commensalism
• mutualism
• parasitism
• cooperation

When organisms _________, they are working together for a common purpose.

• compete
• cooperate
• emigrate
• immigrate

All of the populations in an area that interact with one another make up a ___________.

• niche
• symbiosis
• habitat
• community

Resources such as food and water or the number of predators can be things that limit the size and growth of a population are _______.

• limiting factors
• carrying capacities
• habitats
• pioneer species

A pair of geese fly 3 miles to the east of their original home to find a nesting site.  The population at the new nesting site increases by two as a result of ____________.

• immigration
• emigration
• competition
• cooperation

A __________ is the physical location where different species live.  This could be a field, a forest, or a pond.

• niche
• habitat
• community
• population

The relationship between a flower and a bee is ____________.  In this situation, both organisms benefit.

• parasitism
• commensalism
• mutualism
• succession

Any relationship that involves two different species living together closely is ____________. 

• emigration
• succession
• carrying capacity
• symbiosis

A group of organisms that can produce offspring which are also able to breed and produce their own offspring is a ________.

• habitat
• predator
• species
• prey