Grade 9 Ecosystems Test Review

What is Biodiversity

• Biodiversity is the study of rocks and minerals
• Biodiversity is the name of a popular video game
• Biodiversity is the process of converting waste into energy
• Biodiversity is variety of living things in the same area

What two thing require an organism to be successful?

What is extinction?

• A species no longer found anywhere

• A species found in parts of Canada

• A species all over the world

• Species that’s almost gone

What is a habitat?

• Place people go to socialize

• Where an organism lives

• Where an organism goes to work

• Where an organism eats

What is secondary succession?

• Secondary succession is an area where the soil has been destroyed and no life exists.

• Secondary succession is an area where a new community is established without any destruction.

• Secondary succession is an area where the existing community remains intact.

• Secondary succession is an area where an existing community has been partially or completely destroyed, but the soil is still intact.

What is habitat fragmentation?

• combining small habitats into larger, continuous habitats.

• large, continuous habitats are divided into smaller, isolated patches.

• creating new habitats from scratch.

• moving habitats to different locations.

What is biomagnification?

• the concentration of a substance decreases as it moves up the food chain.

• the concentration of a substance remains the same as it moves up the food chain.

• the concentration of a substance increases as it moves up the food chain.

• the concentration of a substance decreases as it moves down the food chain.

What is an introduced species

• a species that is not native to a specific location and has been brought there by human activity.

• A species that is only found in one specific location
• A species that has always existed in a specific location
• A species that has been genetically modified by humans

What is extirpated?

• Found in many parts of the world

• No longer exists in one part in Canada but still found in others

• Found in all parts of Canada

• Found only in the ocean

What is ecological succession?

• Change between species and habitats over time

• The loss of species over time

• The gain in species over time

• Habitats moving locations