<span>The inability to recall which numbers on a telephone dial are not accompanied by letters</span>
A. animal can fly; AA. animal can't fly. That should be the correct answer. I hope that this helps you!
<span>Aristotle would have trouble classifying euglena since Aristotle's classification system was only for plants and animals. Euglena exhibited characteristics of photosynthesis which is present in plants and movement which is only present in animals. </span>
The units of evolution are populations and not individuals because a variation or a mutation in an individual is not sure to last or produce offsprings having the same variation or mutation. The proof that a species has truly evolved is when the variation has allowed the species to survive its environment and produce generations carrying the same variation.