Multiple ChoiceWhich of the following factors is most commonly cited by scientists as a major cause of the recent increase in extinction rates?70views
Multiple ChoiceWhich process uses rock layers and index fossils to estimate the age of an object?70views
Multiple ChoiceWhich of the following characteristics can affect an individual's evolutionary fitness?70views
Multiple ChoiceWhich of the following lists correctly identifies the four main principles of natural selection as described by Charles Darwin?80views
Multiple ChoiceWhich of the following actually evolves according to the principles of natural selection?66views
Multiple ChoiceWhich type of natural selection favors individuals of average size over those that are either much larger or much smaller?47views
Multiple ChoiceWhich of the following scenarios could potentially lead to the emergence of a second human species in the future?289views
Multiple ChoiceThe type of selection practiced by humans when breeding dogs is referred to as ______ selection.132views
Multiple ChoiceAccording to Bergmann's rule, as average environmental temperature decreases, which of the following is most likely to occur in endothermic animal populations?40views
Multiple ChoiceWhich of the following is a limitation of using food webs to represent ecological reality?67views
Multiple ChoiceWhich term describes the common ancestor that gave rise to the most evolutionarily recent derived characters in a phylogenetic tree?70views