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Answer this question… Directional selection

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Q: Cane toads are large nonnative poisonous toads in Australia. After cane toads entered Australia scientists observed that the average head size in a population of toad-eating snakes was getting smaller?
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In Australia, millions of nonnative cattle produce a huge amount of dung. For decades, Australia has imported nonnative dung beetles to help clean up the dung. Which sentences best explains why native Australian dung beetles were not doing the job?

A. Cow dung is not apart of any native Australian species' niche. (APEX)


In Australia millions of nonnative cattle produce a huge amount of dung. For decades Australia has imported nonnative dung beetles to help clean up the dung. Which sentence best explains why native Au?

cow dung is not part of any native australian species niche


What happened to the population of the nonnative American settlers from 1805 and 1900?

the populaton of non native ameican settlers from 1805 to 1900 increased


Is crabgrass nonnative?

i dont know, but it is invasive


What is the opposite of the word town?

The opposite of the word "town" is "countryside" or "rural area," referring to areas outside of urban centers.


What is a common source of the introduction of nonnative species?

people


What is a nonnative citizen called?

They would be a naturalized citizen.


Why can nonnative animal populations can grow rapidly in a new ecosystems why?

B/c there's no natural competition for them to keep their numbers in check.


What is an advantage of keeping nonnative species out of ecosystems?

Nonnative species have no natural controls or competitors and will become more and more invasive. They can crowd out native species until they no longer exist.


What is a synonym for foreign?

* alien * expatriate * nonnative * offshore * overseas


What tree was a nonnative species intentionally introduced in England?

pine


What is non native species?

a non native species is a species that isn't within a certain ecosystem.