Human Impacts 2

Which of the following is NOT a term for animals brought into Australia from another country?

• Introduced Species

• Native Species

• Feral Animals

• Invasive Species

When introduced to a new habitat, non-native plants often threaten the native plants. Why is this?

• Non-native plants eat the native plants.

• Non-native plants are eaten by more native animals.

• Non-native plants cause native animals to relocate.

• Non-native plants compete with the native plants for resources.

What defines a species as invasive?

• Species brought to a new ecosystem but unable to adapt.

• Species which fight with other invasive species for space.

• Species moved to a new ecosystem and taking resources from the native species.

• Species moved to a new ecosystem and giving resources to the native species.

What is the definition of a native species?

• A species which is local and has lived in the same ecosystem.

• A species which travels to many ecosystems as long as they are in Australia.

• A species which was once introduced but so old that is very common.

• A species which competes with other native species.

What is the main cause of introduced species?

• Travelling species

• Strong wind

• Human introduction

• Seeds carried on animals

How do invasive plants damage the environment? Select all correct answers.

• Competition with native species.

• Grow in specific areas on their own.

• Change the natural plant community.

• Effect the survival rate of native plants.

• Alter biodiversity by effecting native plant survival rate.

Which of the following is NOT an effect of introduced species?

• Competition of shelter

• Competition for food

• Competition for space

• Competition for breeding partners

Biodiversity refers to

• extinct species
• the variety of species on Earth
• nonrenewable resources
• the rate of species decline

What effect will an invasive species have on the carrying capacity of an ecosystem?

• The carrying capacity will increase
• The carrying capacity for everyone will decrease
• The carrying capacity will only decrease for those in competition for same resource
• The carrying capacity for all animals will stay the same

Kudzu has overgrown many parts of southern Missouri and native ground plants have disappeared from the area. This is an example of:

• Parasitism between kudzu and the native plants
• A predator prey relationship between ground plants and kudzu
• Competition occurring between the native and invasive species
• Commesalism occurring between the kudzo and native plants