Selection and Evolution

What causes genetic variation in a population?

• Mutation

• Photosynthesis

• Mitosis

• Respiration

Which of the following is an example of discontinuous variation?

• Body size

• Blood type

• Skin tone

• Height

What is the process by which humans determine which individuals survive and reproduce to produce a population of individuals with desired characteristics?

• Natural selection

• Selective breeding

• Genetic drift

• Mutation

Which of the following is an example of selective breeding?

• Evolution of new species

• Antibiotic resistance in bacteria

• find the wheat and rice that disease resistance

What is the change of characteristics of species over time, due to changes in allele frequencies which can lead to formation of new species from pre-existing ones?

• Mutation

• Genetic drift

• Evolution

• Natural selection

Which of the following is a biotic factor that can keep down the population number in natural selection?

• Climate change

• Predation

• Nutrition levels in the soil

• Water supply

Which of the following is an example of continuous variation?

• Eye color

• Blood type

• Height

What is the correct order of these processes?

• 1-3-2-4

• 2-1-3-4

• 3-4-1-2

• 4-3-1-2

Which characteristics shows discontinuous variation in humans?

• height

• length of foot

• tongue rolling

• weight

• A

• B

• C

• D