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WorksheetsNatural Selection
Total questions: 10
Worksheet time: 7mins
Fecundity refers to:
An organisms phenotype
A organisms genotype
An organisms ability to reproduce
An organisms ability to survive
Viability refers to:
An organisms ability to reproduce
An organisms ability to survive
An organisms phenotype
An organisms genotype
TRUE or FALSE: natural selection occurs when selection pressures shift towards fitter phenotypes.
TRUE
FALSE
Allele types and frequencies of a population at a point in time is known as the:
Gene flow
Population composition
Gene pool
Relative phenotype frequency
A chance or random event which impacts gene pool of a population is known as:
Genetic drift
Mutation
Natural selection
Gene flow
The process shown below is known as (a)
The small seeded plants in an area were killed by a fungus. Finches with a small beak cannot crack open the large seeds from the plants that were left. What type of selection is likely to occur?
directional selection
stabilizing selection
disruptive selection
artificial selection
Having a very high birth weight or a very low birth weight increases the mortality rate of human babies. What type of selection may occur over time?
directional selection
disruptive selection
stabilizing selection
artificial selection
