Bacteria
Question 20
Which of the following is NOT a drawback of using DNA to determine relationships among species?expensivemany thousands of characterscannot use on fossilssome taxa are not available for sampling
Question 21
In phylogenetics, sister groups (properly defined):are the branches located next to each other on a treeshare a most recent common ancestor
have the same mitochondrial DNAlook identical
Question 22
Similarities between organisms early in development (e.g. before birth or hatching) tell us nothing about their evolutionary history.TrueFalse
Question 23
Which of the following is NOT expected to affect species diversity?competitionpredationclimateall of the above will affect species diversity
Question 24
The majority of species on earth are:vertebrates
Mammalsinvertebratesbacteria
Question 25
The fossil record shows clear evidence for gradualism, but punctuated equilibrium is merely a theoretical possibility and has not been demonstrated.
True False
