Although absolute distinctions between the ʺmost evolvedʺ protobiont and the first living cell are unclear, biologists generally agree that one major difference is that the typical protobiont could not

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#Question id: 3422

#Section 2: Evolution

Micro-evolution is the term used for changes in allele frequencies that occur over time.

A) It gives rise to changes in the gene pool, which results in few changes in the same species

B) It occur above species level

C) New addition, deletion in the genetic structure, resulting in the formation of new species

D) It changes occurs over short time scales

Which of the following combinations is correct?

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#Question id: 10832

#Section 1: Ecology

Which of the following is an example of a plant chemical defence?

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#Question id: 10738

#Section 1: Ecology

Which of the following terms is inconsistent with the others?

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#Question id: 12373

#Section 1: Ecology

You are most likely to observe primary succession in a terrestrial community when you visit a(n) 

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#Question id: 8926

#Section 2: Evolution

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