Humans have caused quokka populations to decrease due to animal cruelty. Humans have also introduced predators to quokkas, such as dogs and cats.
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Decrease
Explanation : if there is less born and a greater number dead then math will tell you that the population would decrease have a nice day (:
Answer:
An index fossil is a fossil used to determine the age of the sediments in which it is found. When quickly approximating the age of new finds, an archaeologist looks at the rocks in which it is buried, as those sediments would have been on the surface at the time of the death of the pre-historic creature.
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Answer: family and order; because members of lower taxon resembles more than that of higher taxon.
