You place 2 water fleas in an aquarium and give them plenty…

You place 2 water fleas in an aquarium and give them plenty of food. After a week you come back and see there are now 12 of them, and after another generation there are 144 water fleas. Finally, after another week there are 432. Using the Pert equation, calculate r (% growth rate), and then select the closest value below.

Thick- skinned rhinoceroses and elephants were once classifi…

Thick- skinned rhinoceroses and elephants were once classified together as pachyderms (meaning “thick skin”). They actually descended from different ancestors that in turn evolved from a thin-skinned common ancestor that was not included in the pachyderms. Pachyderms were therefore, as a taxon,