Dynamic Ecosystems

Which of the following is an example of an interaction between a living and nonliving organism?

• a snake using a mouse for food
• a worm using the soil as shelter
• a bird using an insect for food

Is a hurricane a natural event that causes a change in the environment?

• yes 
• no

Is people cutting down trees a natural event that causes a change in the environment?

• yes
• no

What is a source of energy for the mouse?

• strawberries
• insects
• other mice
• owls

Which is a biotic factor?

• Fox
• Mountain
• Air
• Sunlight

An individual living thing is a/an __________.

• habitat
• ecosystem
• organism
• population

All of the nonliving parts of an ecosystem are _______.

• biography
• biotic
• abiotic
• biology

A group of organisms of the same species living in the same area are called a/an ________.

• community
• habitat
• population
• ecosystem

All of the living and nonliving things in an area that interact with each other are called a/an ______.

• community
• habitat
• population
• ecosystem

A group of different species that live together and interact in an environment are called a/an ________.

• community
• habitat
• population
• ecosystem