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WorksheetsEvolution Quiz A
Total questions: 15
Worksheet time: 8mins
Every year, adult salmon swim upstream to a spawning area. To get to the area, salmon have to swim against strong currents for a long time. Only the strongest salmon successfully complete the journey. What concept is represented in this example?
climax community
succession
mutualism
survivial of the fittestsurvival
Which most likely explains the change in the mouse population?
The lighter mice were more visible to predators than the darker mice, which resulted in fewer of the lighter mice reaching reproductive age.
The darker mice did not require as many resources as the lighter mice, which resulted in more of the darker mice reaching reproductive age.
The lighter mice were less successful in finding food in the environment than the darker mice, which resulted in fewer of the lighter mice being able to survive.
The darker mice were able to find more nesting places in the environment than the lighter mice, which resulted in more of the darker mice being able to survive.
A new species of finch with long beaks is introduced to an island with a limited food supply. The long beaks allow the finches to gather food more easily compared to the native finches. What will be the most likely outcome in 30 years?
Both finch populations will increase.
The native-finch population will decrease and the long-beak finch population will increase.
The native-finch population will increase and the long-beak finch population will decrease.
Both finch populations will decrease.
Certain types of tree frogs live in habitats with a lot of green, leafy vegetation. What color of tree frog would have the best chance of passing on its traits to successive generations in this habitat?
yellow
blue
black
green
Why do characteristics that are not beneficial to a species tend to decrease in frequency over time?
The characteristics have a high survival rate.
The characteristics are inherited by other individuals.
The characteristics have a low survival rate.
The characteristics take time to spread into the population.
Four hundred beetles of the same species were sprayed with an insecticide. Several weeks later, nearly all the beetles were dead. A few, however, survived. Which statement best describes the future generations of these beetles?
The future generations of beetles will likely survive the insecticide if it is sprayed again.
The beetles in future generations will have no immunity to the insecticide.
The majority of beetles in future generations will also die from the insecticide.
The surviving beetles will not pass on their favorable traits to future generations.
In some species of birds, males with bright colors and long feathers are usually picked by dull-colored, female birds for mating. If this is true, what will happen to the males in future generations?
There will be a greater population of dull-colored males.
There will be a greater population of brightly colored males.
There will be equal numbers of dull-colored and brightly colored males.
There will be a decline in brightly colored males each generation.
A population of dark- and light-colored mice move into a new area that has a lot of dark-colored rocks. The light mice are more easily visible to hawks hunting for them. What will happen to the genes of this mice population over time?
The genes for the mice will stay the same throughout successive generations.
The genes for light-colored fur will increase with every generation.
The genes for dark-colored fur will increase with every generation.
The genes for dark-colored fur will slowly disappear through successive generations.
According to Darwin's theory of evolution, differences in the fossils between species may be the result of
natural selection
mutagens
the use and disuse of body structures
the transmission of acquired traits
Which of the following is true of certain physical characteristics that are passed from generation to generation?
All of the physical characteristics passed down are needed for the survival of the species.
Many of the physical characteristics passed down are needed for the survival of the species.
Many of the physical characteristics are passed down, but none of them are needed for the survival of the species.
All of the physical characteristics are passed down, but none of them are needed for the survival of the species.
According to Darwin, why do modern giraffes have long necks?
Giraffes have always had long necks like the modern ones.
Earlier short-necked giraffes stretched their necks over a long period of time.
Ancient giraffes developed short necks and pass this trait to their offspring.
Giraffes born with longer necks would survive better in an environment with tall trees.
Charles Darwin's studies of finches on the Galápagos Islands suggest that the finches' differences in beak structure were caused by which of the following?
the mating behaviors of the different finch species
the adaptations of the finches to different environments
the acquired characteristics of the parent finches
the sizes of the islands on which the finches lived
Natural selection produces change by allowing beneficial genes to recombine in
an individual organism.
all organisms within a population.
only the first generation of offspring.
successive generations of offspring.
Which of the following is true of reproduction?
Only small organisms have a high chance to reproduce.
Only large organisms have a high chance to reproduce.
All genes that are beneficial are passed on to the next generation.
On average, the fittest organisms pass on genes to the next generation.
There are five species of the Texas state flower, the bluebonnet. Each flower is found in a different region of Texas and has slightly different traits. What most likely accounts for this variation?
natural selection
selective breeding
genetic engineering
selective pollination
