Worksheets5 forces of Evolution
Total questions: 14
Worksheet time: 12mins
Bats are common in Texas, especially in rocky regions. Bats with longer hang claws have demonstrated higher fitness because of their ability to cling to rock while resting. This adaptation is becoming more frequent in the population. What mechanism of evolution is this?
Natural Selection
Non-random mating
Gene Flow
Genetic Drift
A population of rabbits can have brown fur and white fur with brown fur being the dominant allele. By random chance, the offspring may all be brown and this could reduce or eliminate the allele for white fur. This scenario is shows
gene migration
inbreeding
Genetic drift
Adaptation
The effects of natural selection may be countered by
Gene flow
Genetic drift
Mutation
Non -random mating
which of the following statements does not describe natural selection:
Natural selection can increase the proportion of favorable traits in a population
Humans have modified many species by selectively breeding individual species to develop new species with specific, desired characteristics
Individual organisms with certain characteristics are more fit for their environment than organisms without certain characteristics. The organisms with the best suited characteristics for their environment will live to reproduce, and pass those characteristic on to their offspring
If a group of organisms relocates to a new environment, or if its current environment changes, the organisms that have a higher fitness in the new environment will leave more offspring and may, over time, give rise to a new species.
A blonde-haired, blue-eyed family from Sweden moves to India where the children grow up, marry Indians and produce offspring who now have the blonde-haired, blue-eyed alleles. This is an example of
Gene flow
Genetic drift
Mutation
Natural selection
crossing of dogs of the same breed to continue to have dogs with common characteristics is an example of non random mating
True
False
________ can be beneficial, neutral, or harmful for the organism, but _________ do not "try" to supply what the organism "needs. What answer choice correctly fills in the blank?
Gene migration
Mutation
Natural selection
Inbreeding
