Evolution Quiz

Over generations of time apart on different islands with different food sources, the separated populations of Galapagos finches accumulated genetic differences until each group had different beaks. This is an example of _____.

• endosymbiosis

• adaptation

• genetic drift

• speciation

Individuals undergo evolution.

• True

• False

A phenotype that improves an organism's chance of survival in their environment is considered a(n) ________.

• natural selection

• speciation

• adaptation

• extinction

Which of the following is NOT an example of natural selection?

• people selectively breeding hamsters for size

• insect populations developing resistance to certain pesticides

• bacteria becoming resistant to antibiotics

• male birds of certain species inheriting colorful feathers that are more attractive to females

Genetic drift is change in the allele frequency of a population due to...

• random chance

• non-random mating

• natural selection

• artificial selection

The pelvic bone of whales is not needed for movement within the water. This is an example of a(n) __________ structure.

• vestigial

• homologous

• analogous

• heterozygous

The forelimbs of mammals have similar anatomy because these groups descended from a recent common ancestor. Their bone structure is an example of a(n) __________ structure.

• vestigial

• homologous

• analogous

• heterozygous

A flood drowns a large portion of an insect population, with only a few random individuals surviving. This is an example of ______.

• genetic drift

• natural selection

• adaptation

• migration

Which of the following is a term for a group of similar organisms that can reproduce fertile offspring?

• individual

• population

• species

• fossil

Mutations are important because they bring about _____.

• death of the organism in which they develop

• genetic variation needed for a population to evolve

• benefits for the individual, not for the population

• Hardy-Weinberg equilibrium within a population