Exam 17: Processes of Evolution

A group that contains an ancestor in which a derived trait evolved and all of its descendants is called a ____.

Hardy-Weinberg equilibrium is most likely to be maintained ____.

In allopatric speciation, species usually form ____.

A population of mice shifting from light-colored coats to darker coats is displaying the effects of ____ selection.

Match the event with the most appropriate term. -a flowering plant that produces a polyploid cell that can self-fertilize and produce a new species

-?The illustration labeled "A" shows selection against ____.

Match the event with the most appropriate term. -more white-coated hares appeared compared to brown-coated hares during an ice age

Match the event with the most appropriate term. -hard shells that allow reptiles to lay eggs on land

When fish release their gametes into open water for fertilization, ____ isolation usually prevents the fusion of egg and sperm from different species.

The speciation of cichlid fishes of the same African crater lake is an example of ____.

The persistence of malaria and sickle-cell anemia within a population best illustrates ____.

Hawaiian honeycreepers illustrate the diversity that often flourishes due to ____.

The rise of pesticide-resistant insects in agricultural fields is a prime example of ____ selection.

-What would the backbone character (A) be called in the phylogenic study of the accompanying figure?

The primary reason for hybrid sterility is ____.

One source of trait variations among individuals is the process of fertilization, in which when new combinations of maternal and paternal alleles are produced. What other sources contribute to trait variations within a species?

When giant velvet walking worms and blind velvet walking worms interbreed, their offspring are rarely observed and the two species continue to maintain separate identities. This is an example of _____ speciation.

In order for two groups to be considered separate species, they should not ____.

Sometimes, plant species that grow in the same area cannot interbreed because their physical shape has become specialized for different types of pollinators. What type of reproductive isolation is occurring?

A method called ____ uses diagrams to group species based on their shared characteristics.