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Which of these statements about invasive species is/are true? A. An invasive species is an organism that is not indigenous, or native, to a particular area. B. Invasive species can cause great economic and environmental harm to the new area. C. To be invasive, a species must adapt to the new area ea...

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Which of these statements about invasive species is/are true?

A. An invasive species is an organism that is not indigenous, or native, to a particular area.

B. Invasive species can cause great economic and environmental harm to the new area.

C. To be invasive, a species must adapt to the new area easily.

D. All of the choices

Which of these is not an alternate name for Invasive Species?

A. alien species

B. endemic species

C. exotic species

D. introduced species

Invasive species can change the food web in an ecosystem by destroying or replacing native food sources. True False

Species can only be considered invasive if they are predators.

True False

Which of these statements about invasive species is false?

A. Invasive species are endemic species.

B. Invasive species can have huge economic impacts.

C. Invasive species are capable of causing extinctions of native plants and animals.

D. none of the choices

This is the usual main reason why invasive species can breed and spread quickly, taking over an area.

A. they easily mutate

B. they are comfortable in their new environment

C. they have no natural predator

D. they have enough source of food

Which of these is not a direct threat of invasive species?

A. changing the food web in an ecosystem

B. causing or carrying disease

C. preying on native species

D. outcompeting native species for food or other resources

An invasive species can be any kind of living organism that is not native to an ecosystem and causes harm. True False

Invasive species can harm the environment, the economy, or even human health. True False

Which of these statements about invasive species is/are true?

I. People must be educated about invasive species. II. People must not take home any animals, plants, shells, firewood, or food from different ecosystems.

A. I only

B. both I and II

C. II only

D. none of the statements

Any nonnative species that significantly modifies or disrupts the ecosystems it colonizes.

A. Invasive

B. All of the choices

C. Alien or Exotic

D. Introduced

Which of these choices is not a natural factor that may introduce species into new habitats?

A. storm

B. hunting

C. ocean current

D. climates shift

Which of these statements about invasive species is/are true?

A. Endemic species are not affected by invasive species.

B. Not all introduced species are invasive.

C. Alien species are those organisms from other planets.

D. It is a wrong notion that most invasive species are introduced by humans.

The only direct threat of invasive species is they are preying on native species. True False

Which of these statements about invasive species is/are true?

I. Invasive species can never be eradicated. II. There is no acceptable circumstance that requires eradication of invasive species.

A. both I and II

B. I only

C. none of the statements

D. II only

Invasive species are primarily spread by human activities, often unintentionally. True

False

Which of these is not a real event caused by invasive species?

A. massive vines that buried a city

B. ravenous snake that devoured an alligator

C. none of the choices

D. rabbit populations that eat themselves into starvation

Which of these statements about invasive species is/are true? I. All invasive species are consumers. II. All invasive species are producers.

A. I only

B. None of the statements

C. II only

D. both I and II

Invasive species compete with native wildlife for food sources. True

False

Which of these statements about invasive species is/are true?

I. All invasive species are introduced species. II. All introduced species are invasive species.

A. I only

B. II only

C. none of the statements

D. both I and II

Another possible threat of invasive species is preventing native species from reproducing or killing a native species' young. True False Which of these is not an indirect effect of invasive species?

A. change conditions in an ecosystem

B. replace a diverse ecosystem to a monoculture C. change soil chemistry

D. none of the choices

An invasive species does not have to come from another country. True False

Which of these statements about invasive species is/are true? I. All invasive species cause harm to the environment. II. Some invasive species are beneficial to the environment.

A. both I and II

B. I only

C. none of the statements

D. II only

All non-native species are invasive species. True False

That invasive species can change the food web in an ecosystem by destroying or replacing native food sources is a direct threat. True False

Which of these statements about invasive species is/are true?

A. No invasive species were intentionally or accidentally released pets.

B. Invasive species always become a favorable change to ecosystems.

C.

Ships can carry in their ballast water some aquatic organisms that can eventually become invasive species.

D.

There is no need to control invasive species because that is part of the earth's natural cycle.

Threats of invasive species are all direct threats. True False

Species can only be considered invasive if the migration is from one country to another country. True False

An invasive species that suddenly has no predator can be controlled by importing its natural predator from the region where it came from. True False

In the past there are events wherein they tried various solutions to this problem. For example, in the case of the cane toad which are native in southern and central America that were introduced to Australia on purpose. There were suggestions that they should bring the natural predators of the cane toad to Australia to eradicate them, but it was too risky bringing another non-native species because this is the root cause of this problem. But they found the meat ants which were native in Australia that can eat and kill cane toads without being poisoned. Another example is the eradication of species in Macquarie’s Island, they introduced various foreign species like the rats, mice, cats, rabbits, and trained dogs. To eradicate all these species they introduced the cats to remove the rodents, introduced a rabbit disease to eliminate some of the rabbits, shot the cats, and they brought in trained dogs to hunt down the rabbits. This started in the 1800s but the island was only eradicated last April 2014, this proves that it is very time consuming, difficult, and expensive to deal with this problem, but the eradication in Macquarie’s Island is a living proof that this problem can be solved....