The first line of defense against point mutations is:

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#Question id: 12374

#SCPH28 | Zoology

The process in which pioneer species colonize a bare substrate such as rock, sand, or glacial till is known as

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#Question id: 12375

#SCPH28 | Zoology

When lichens grow on bare rock, they may eventually accumulate enough organic material around them to supply the foothold for later rooted vegetation. These early pioneering lichens can be said to do what to the later arrivals?

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#Question id: 12376

#SCPH28 | Zoology

All of the following may be considered as sites for secondary succession EXCEPT

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#Question id: 12564

#SCPH06 I Botany

A prime factor promoting the adaptive radiation of Darwin's finches on the Galapagos Islands was the

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#Question id: 12565

#SCPH06 I Botany

If we say a species is endemic to a certain area, we mean that

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#Question id: 12566

#SCPH06 I Botany

Forests with a high density of native conifer trees are found in: