Review How do populations affect each other

Limiting factors are sometimes helpful because they can keep the population from getting too large.

• True
• False

A snake is eaten by a hawk. The hawk is the _______.

• prey
• parasite
• predator
• all of these

Food, water, sunlight, shelter, and space are resources that are  __________.

• limiting factors
• wet
• messy
• found in rocks

If the population of a certain predator increases, there is often _______ its prey

• a decrease the population of
• an increase of the population of 
• great news for its prey of
• no  impact found on

If there is more food than usual in an ecosystem, then...

• Populations will stay the same
• Populations will decrease
• Populations will increase

Any thing or organism that regulates the size of a population of another organism is known as __________.

• a limiting measure
• a limiting factor
• factorization
• materialization of precipitation

If a disease destroying barley plants in a field swept through an ecosystem, what would happen to the barley eating bird population in the the field ?

• The bird population would stay the same
• The bird population would infinitely increase
• The bird population would decrease

A ______ plant species is one that occurs in area without human action.

• Invasive
• Native
• Weed
• Non-Native

A non-native plant that causes problems to the environment that it is introduced to is called __________.

• Invasive
• Weed
• Indigenous
• Purple

A species that is not native to an area is called: 

• Native Species
• Natural Species
• Invasive Species
• Symbiotic Species