Evolution Test Revew

Evolution can occur at different rates; however, for evolution to occur, there must be

• variations within a species

• extinction of the species

• asexual reproduction

• no change in the genes of an organism

A variety of species of Galapagos finches evolved from one original species long ago through the process of

• asexual reproduction

• ecological succession

• natural selection

• selective breeding

Darwin's studies of finches on the Galapagos Islands suggest that the finches' differences in beak structure were most directly due to

• acquired characteristics in the parent finches

• the size of the island where the finches live

• mating behaviors of the different finch species 

•   adaptations of the finches to different environments

Which best defines the term natural selection?

• survival of the strongest organisms

• elimination of the smallest organisms by the largest organisms

• survival of those organisms genetically best adapted to the environment

• survival and reproduction of those organisms

  that occupy the largest area in an environment

Which factor has the greatest effect on the rate of evolution of animals?

• environmental changes

• use and disuse

• asexual reproduction

• vegetative propagation

Male turkeys are birds that naturally strut and display their large tail feathers, which attracts female turkeys. This display is an example of

• a behavioral adaptation

• selective breeding

• asexual reproduction

• a learned behavior

Limited resources contribute to evolutionary change in animals by increasing

• the carrying capacity for the species

• genetic variation within the population

• competition between members of the species

•  the rate of photosynthesis in the population

Lobsters are crustaceans related to crayfish, crabs, and shrimp. Most lobsters are a reddish brown color, but on rare occasions, they can be orange, blue, or even multicolored. These color differences can be caused by

• genetic variations

• different numbers of offspring

• overpopulation and excessive resources

• the instability of the ecosystem

A chemical was added to hand sanitizers and dish detergents to kill bacteria. Certain species of bacteria are no longer killed by this chemical. One likely reason for the decreased effectiveness of this chemical is that these bacteria have

• slower metabolic rates

• a mutation for resistance

• been selectively bred for survival

• an adaptation to a different niche

A species that lacks the variation necessary to adapt to a changing environment is more likely to

• develop many mutated cells

• become extinct over time

• begin to reproduce sexually

• develop resistance to disease