Changes in Ecosystems

All of the organisms in an ecosystem is called a ________________.

• community 
• population
• endangered
• extinct

This can be caused by bacteria or mold.

• drought
• disease
• wildfire
• flood

A long period of time with no rain causes a ________________.

• flood
• disease
• wildfire
• drought

All of the members of a single type of organism in an ecosystem is called a _____________________.

• community
• natural disaster
• endangered
• population

A __________________________ covers dry land with water.

• wildfire
• drought
• flood
• disease

A ________________ can start when lightning strikes a dry area.

• drought
• wildfire
• flood
• disease

A wildfire is an example of a _________________________.

• natural disaster
• dry weather
• accident
• adaptation

When an organism has only a few living members of its population left it is called ________________.

• extinct
• a shame
• endangered
• an ecosystem

Tags

NGSS.HS-LS4-5

I am an ancient animal that used a trunk as elephants do today. Who am I?

• saber-toothed-cat
• prairie dog
• t-rex
• woolly mammoth

I am the remains of an organism that lived long ago. What am I?

• fossil
• decomposer
• extinction
• endangered species