Without duplicated genes, species would be vulnerable to extinction. One copy of

Question

Without duplicated genes, species would be vulnerable to extinction. One copy of a gene can perform the original function while other copies are available to take on new functions. What does the circled part of this cladogram indicate? an adaptive radiation a mass extinction event rapid speciation a and c all of the above What evidence demonstrates that humans are currently causing a mass extinction event? A sharp human population increase corresponds to a time of many extinctions. Island species extinctions are attributable to human activities. Recent extinction levels are up to 100 times the rate of background extinctions. All of the above answers are evidence.None of the above answers are conclusive.

Explanation / Answer

1.)The circled cladogram shows adaptive radiation.

2.) Evidence for mass extinction shows recent extinction levels upto upto 100 times the rate of background extinction

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