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20 questions
Gradualism means Natural Selection would normally happen over many generations and very
slowly
quickly
in space
beyond time
Punctuated Equilibrium implies catastrophic events caused natural selection to speed up due to great environmental changes.
True
False
According to natural selection, light colored tree trunks would favor
light colored moths
dark colored moths
red colored moths
red and light colored moths
Genetic diversity in a species makes long term survival of some members
impossible
improvable
more likely
less likely
Over the years, white mice became extinct and darker mice survived. This is
stabilizing selection
directional selection
disruptive selection
due to exercise
Birds with smaller beaks die out when a disease kills all food sources except hard nuts.
adaptive radiation
respiration
an anomoly
unlikely
A physical trait favored by an environmental change can be called an
adaptation
extinction
possibility
mutation
The special niche occupied by a particular species is called a
extinct
punctuated equilibrium
habitat
all of the above
Natural Selection is driven by a change in the environment and survival of the
Earth
Fastest
Fittest
Biggest
Average phenotypes are favored in the environment, while extremes have lower survival rates.
seasonal selection
distruptive selection
directional selection
stabilizing selection
Two populations of the same species are separated by land barriers like rivers or mountains.
geographical isolation
temporal isolation
adaptive ratiation
behavioral isolaton
Two populations of the same species do not have the same mating rituals or signals.
geographical isolation
temporal isolation
adaptive ratiation
behavioral isolaton
All the possible gene combinations in a population.
allele
gene pool
genome
mitosis
The frequency that single genes (alleles) for a trait appear in a population.
Genome
Gene frequency
Genetic Drift
Population Frequency
Changes in the gene pool over time.
Mitosis
Genetic Variation
Gene Pool
Genetic Drift
Organisms of the same species do not interbreed for various reasons.
Genetic Isolation
Gene Pool
Adaptation
Survival of the Fittest
Isolated small populations speed up genetic drift.
Gene Pool
Mitosis
Speciation
Founders Effect
Organisms of the same species can no longer interbreed therefore creating two species.
Gene Pool
Genetic Drift
Gene Frequency
Speciation
Severe population reduction reduces the gene pool
and increases the rate of genetic drift. Woolly mammoths became extinct. Elephants survived.
Gene Pool
Bottleneck Effect
Founders Effect
Gene Frequency
The extreme population phenotypes are favored by the environment.
Disruptional (Diversifying) Selection
Directional Selection
Stabilizing Selection
All of the above
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