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WorksheetsTheories of Evolution
Total questions: 10
Worksheet time: 5mins
1. Which of the following statements about biological species is (are) correct?
I. Biological species is a group of individuals whose members interbreed with one another.
II. Biological species are the model used for grouping extinct forms of life.
III. Members of biological species produce viable, fertile offspring’s.
I only
II only
I and III
II and III
I, II, and III
The following isolating mechanisms prevent fertilization and formation of zygote except
Temporal isolation
Hybrid breakdown
Gametic isolation
Ecological isolation
Behavioral isolation
Natural selection results in change in a population's _____________ traits over time.
inherited
acquired
A phenotype that improves an organism’s chance of survival in their environment is considered a(n) ____________.
natural selection
adaption
speciation
What is speciation?
combining of two species to form one with different traits
Intentional breeding designed to maintain a desired trait
timing of mating that prevents normal sexual selection
A population splits and accumulates different genes in the new groups
Which of the following is NOT an example of natural selection?
People selectively breeding hamsters for size.
Insect populations developing resistance to certain pesticides.
Bacteria becoming resistant to antibiotics.
Male birds of certain species inheriting colorful feathers that are more attractive to females.
Darwin’s and Lamarck’s theories of evolution both suggest that ______________
species are fixed.
the environment creates favourable characteristics on demand.
the main mechanism of evolution depends on the use and disuse of certain organs.
the interaction of organisms with their environment is important in the evolutionary process.
Which does NOT cause genetic variation?
crossing over in meiosis
mutations
acquired traits
Which of the following must exist in a population before natural selection can act upon that population?
Genetic variation among individuals
Variation among individuals caused by environmental
factors
Sexual reproduction
Three of the responses are correct.
Two of the responses are correct.
Which of the following does not contribute to the study of evolution?
Population genetics
Inheritance of acquired characteristics
Fossil records
Comparative embryology
Comparative morphology
