EVOLUTION TEST REVIEW
Statement most closely related to the modern theory of evolution
Organisms best adapted to a changed environment and more likely to reproduce and pass their genes to offspring.
Organisms would most likely have new gene combinations
Resulting from sexual reproduction
Geographic and reproductive isolation are most closely associated with
Speciation
If the same antibiotic is used too many times it can become less effective against a certain type of bacteria This observation is best explained by the
Survival and reproduction of unaffected bacteria
Beak structures differ between individuals of one species of bird these differences most likely indicate
The presence of a variety of food sources
When an octopus camouflages himself by walking on two tentacles and wrapping the rest around its body
The process of natural selection
If an ecosystem is changed through a natural disaster organisms will have the best chance of survival if
Their species exhibits genetic variation
One possible explanation for the fact that some simple, one celled organisms did not evolve into complex, multicellular organisms is that
These organisms possess traits that enable them to survive in a changing environment
Genetically inherited from there parents
Young birds that have been raised from isolation from members of there species build nests characteristic of their species this suggest that the nest behavior is
When the adaptive characteristics of a species are insufficient to allow it survival that species is likely to
become extinct
Certain bacteria are resistant to many antibiotics
one possible explanation for this change is that the antibiotics killed most of the bacteria that did not have a genetic variation for resistance
Billions of years ago life on Earth began with
simple single celled organisms
Ultraviolet radiation
would most likely increase the mutation rate in a culture of bacteria being grown in a laboratory experiment
When a species includes organisms with a wide variety of traits, it is most likely that this species will have
A greater change to survive if environmental conditions suddenly change
If only one type of tree is planted in an abandoned field, the ecosystem will
Contain little genetic variability
According to the theory of biological evolution most present day species of organisms
Descended from different species of organisms
Evolution
Described as a process of change in a population through time.
A certain species has little genetic variation. What would the rapid extinction of this species most likely result from the effective?
Environmental change
The fossil record of ancient life forms provide scientific life functions of
Evolutionary changes
Traits that are least beneficial to a species tend to decrease in frequency from generation to generation because these traits usually
Have a low survival value
Biological Evolution
In a population of birds the percentage of individuals having a certain gene changes from 20% to 60% over the span of several hundred years. This situation will most likely effect the rate of.
Modification of genes in sex cells
In a sexually species evolution could occur as a result of
Reproduce successfully
In order for a species to evolve in must be able to
The concept that new varieties of organisms are still evolving is supported by the
Increasing need for new antibiotics
Describes an effect of natural selection on a species
It favors the survival of certain members of the species and results in the change in the proportion of individuals with highly adaptive traits.
