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WorksheetsEvolution and Natural Selection Review
Total questions: 20
Worksheet time: 11mins
Which of the following would best support the theory of evolution?
Evidence that shows a change in species over time
Evidence that shows there has been little to no change in a species over time
Evidence that shows a decrease in resources but an increase in the number of organisms.
Evidence that shows how biotic and abiotic factors have changed over time
Differences in the alleles among the members of a population
Genetic Variation
Trait Variation
Natural Selection
Heritable
Traits that are due to genetic differences
Trait Variation
Mutation
Natural Selection
Heritable
Which statement best describes adaptation's role in natural selection?
Adaptations are a result of natural selection.
Adaptations limit an organism's ability to reproduce and survive, removing those genes from the gene pool.
Organisms that are more adapted survive longer and reproduce more often, which leads to an increase of those genes in the population
Adaptations are the only contributing factor to natural selection.
Which of the following allows for adaptation evolution?
An increase in organisms with varying traits that allow for survival
A decrease in resources such as water and space
A decrease in genetic variation and trait expression
An increase in competition for natural resources.
Differences among the physical or behavioral characteristics of a group of organisms
Natural Selection
Mutation
Genetic Variation
Trait Variation
Why does natural selection produce changes in populations and not individuals?
Changes in population only occur from sexual reproduction.
One individual cannot alter itself to be more “fit.”
Natural selection is a mechanism of evolution.
Populations can alter themselves to be more “fit.”
Which is the most representative of how natural selection occurs?
Isolation of two populations for many generations leads to the development of a new species.
Variations in genetic information as well as the expression of that trait
Individuals changing as a result of environmental changes
Evolution of a species causes natural selection.
A change in a DNA sequence
Mutation
Heritable
Trait Variation
Natural Selection
Differential survival and reproductive success among a group of organisms due to differences in the inherited traits or characteristics of the organisms
Mutation
Trait Variation
Genetic Variation
Natural Selection
Heritable
Differences among the physical or behavioral characteristics of a group of organisms
Differential survival and reproductive success among a group of organisms due to differences in the inherited traits or characteristics of the organisms
A change in a DNA sequence
Traits that are due to genetic differences
Some female peacocks prefer males with large, colorful tales while other female peacocks prefer males with no tail at all. Females are now mating only with the tail they prefer. What type of reproductive barrier is this?
behavioral isolation
hybrid sterility
temporal isolation
mechanical isolation
In the Great Lakes region of North America, gray wolves and coyotes are similar species but do not mate because their breeding periods occur at different times of the year.
Geographic isolation
Behavioral isolation
Temporal isolation
The females of two species of fruit fly, Drosophila melanogaster and Drosophila simulans release slightly different mating hormones called pheromones, which are used to attract male mates.
Geographic isolation
Behavioral isolation
Temporal isolation
The flashing pattern of the firefly (Lampyridae) is used to attract the opposite sex. Female fireflies only flash back and attract male fireflies who first signal them with a species-specific pattern of light.
Geographic isolation
Behavioral isolation
Temporal isolation
The American toad (Anaxyrus americanus) and Fowler's toad (Bufo fowleri) live in the same area. However, The American toad mates in early summer while Fowler’s mates in late summer.
Geographic isolation
Behavioral isolation
Temporal isolation
Albert’s squirrel and the Kaibab squirrel are distinct subspecies that live on opposite sides of the Grand Canyon. They were once one species, but now differ significantly, including fur coloring.
Geographic isolation
Behavioral isolation
Temporal isolation
Tradescantia ohiensis, a plant also known as bluejacket and its relative, T. subaspera have similar reproductive mechanisms but do not mate, as one species lives in sun while the other lives in shade.
Geographic isolation
Behavioral isolation
Temporal isolation
