#1
Which of the following is an example of genetic drift?
Natural selection favoring individuals with advantageous traits
A sudden decrease in population size due to a catastrophic event
A population of birds developing longer beaks over generations to access food
Introduction of new genes into a population through migration
#2
What is the primary source of genetic variation in a population?
Mutation
Gene flow
Natural selection
Genetic drift
#3
What is the term for the process where certain traits become more common in a population over generations due to their positive impact on survival and reproduction?
Mutation
Gene flow
Natural selection
Genetic drift
#4
What is the term for the evolutionary process where organisms become more suited to their environment over time?
Mutation
Adaptation
Genetic drift
Gene flow
#5
Which evolutionary process leads to the development of homologous structures?
Adaptation
Convergent evolution
Divergent evolution
Mutation
#6
What is the term for the process where species evolve in response to one another?
Co-evolution
Parallel evolution
Convergent evolution
Divergent evolution
#7
Which of the following is an example of allopatric speciation?
Two populations of fish in the same lake develop different coloration patterns
A river separates two populations of birds, leading to the formation of two distinct species
Two species of plants in different regions develop similar flower shapes
A population of insects evolves resistance to a pesticide over several generations
#8
What is the term for the process where unrelated species evolve similar traits?
Divergent evolution
Convergent evolution
Parallel evolution
Adaptive radiation
#9
What is the term for the phenomenon where an organism mimics the appearance of another species for protection?
Camouflage
Mimicry
Cryptic coloration
Aposematism
#10
Which of the following is NOT a factor that can contribute to the rate of evolution?
Mutation rate
Population size
Geographic isolation
Gene flow
#11
Which of the following best describes convergent evolution?
Unrelated species evolve similar traits due to shared ancestry
A single species diverges into multiple species adapted to different niches
Species evolve to become more similar to each other over time
Unrelated species evolve similar traits due to similar environmental pressures
#12
Which of the following is an example of stabilizing selection?
Peppered moth coloration changing due to pollution
Galapagos finches developing different beak sizes based on food availability
Human birth weight centered around an average value
A population of bacteria becoming resistant to antibiotics
#13
Which evolutionary mechanism can lead to the formation of new species without geographic isolation?
Adaptive radiation
Allopatric speciation
Sympatric speciation
Convergent evolution
#14
What role does sexual selection play in evolution?
It increases genetic variation within a population
It reduces genetic diversity in a population
It favors individuals with advantageous physical traits
It leads to the formation of new species
#15
Which of the following is an example of prezygotic reproductive isolation?
Two species of frogs mate and produce hybrid offspring, but the offspring are sterile
Two species of plants flower at different times of the year, preventing cross-pollination
Two populations of birds develop different mating calls, leading to decreased hybridization
Two species of insects mate and produce viable offspring, but the offspring have reduced fitness
#16
What is the name of the process where a single species diverges into multiple species, each adapted to a different ecological niche?
Allopatric speciation
Adaptive radiation
Sympatric speciation
Convergent evolution
#17
Which of the following evolutionary processes is driven by interactions between species rather than environmental factors?
Natural selection
Genetic drift
Adaptive radiation
Co-evolution
#18
What is the name of the phenomenon where the frequency of alleles in a population changes due to chance events?
Natural selection
Genetic drift
Gene flow
Mutation