If, someday, an archaean cell is discovered whose SSU-rRNA sequence is more similar to that of humans than the sequence of mouse SSU-rRNA is to that of humans, the best explanation for this apparent discrepancy would be

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#Question id: 17668

#Unit 9. Diversity of Life Forms

The most recent common ancestor of all land plants was probably similar to modern-day members of which group? 

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#Question id: 8926

#Unit 9. Diversity of Life Forms

Sponges and cnidarians are among the fossilized animals found in both the Ediacara Hills and the Burgess Shale from the Rocky Mountains of British Colombia. This observation requires that

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#Question id: 12371

#Unit 10. Ecological Principles

Succession results from disturbance by fire.

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#Question id: 827

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following factor are not responsible for the protein denaturation?

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#Question id: 3833

#Unit 3. Fundamental Processes

Regarding DNA replication, which, if any, of the following statements is incorrect?