Natural Selection
Which of the four principles of natural selection states that having a large number of offspring raises the chances of some surviving, but also leads to competition for resources among siblings?
A- Variation
B- Overproduction
C- Adaptation
D- Descent with Modification
B- Overproduction
What do we call a change in a species over time?
A- Adaptation
B- Evolution
C- Extinction
D- Environmental influences
B- Evolution
A physical or behavioral trait that helps an organism survive and reproduce in its environment.
A- Adaptation
B- Trait
C- Mutation
D- Variation
A- Adaptation
This type of event occurs when a few individuals start a new population:
A- Bottleneck effect
B- Mass extinction
C- Gene flow
D- Founder effect
D- Founder effect
Which type of selection favors the intermediate phenotype?
A- Bell Curve
B- Directional Selection
C- Stabilizing Selection
D- Disruptive Selection
C- Stabilizing Selection
The movement of alleles between populations:
A- Alleles
B- Gene Flow
C- Genetic Drift
D- Sexual Reproduction
B- Gene Flow
All the individuals of the same species that live within a given environment.
A- Species
B- Population
C- Ecosystem
D- Group
B- Population
Which type of extinction usually affects only a few species in a small area, and is often caused by local changes in environment?
A- Mass extinction
B- Gradual extinction
C- Local extinction
D- Background extinction
D- Background extinction
Which of the four principles of natural selection states that some variations allow an individual to survive better than others without the variation, and these individuals are likely to live longer and therefore produce more offspring?
A- Variation
B- Overproduction
C- Adaptation
D- Descent with Modification
C- Adaptation
Genetic drift, such as the bottleneck effect ...
A- Increases genetic diversity in a population
B- Decreases genetic diversity in a population
C- Increases population numbers
D- Decreases population numbers
B- Decreases genetic diversity
When organisms are better adapted to their environment they will survive and reproduce more successfully than organisms less adapted. This process is called what?
A- Adaptation
B- Evolution
C- Selective Breeding
D- Natural Selection
D- Natural Selection
Remnants of organs or structures that had a function in an early ancestor are called...
A- Homologous structures
B- Vestigial structures
C- Analogous structures
B- Vestigial structures
Which of the four principles of natural selection states that natural selection results in species with adaptations that are beneficial for survival and reproduction in a particular environment?
A- Variation
B- Overproduction
C- Adaptation
D- Descent with Modification
D- Descent with Modification
Which theory of geologic change claims that geologic changes resulted from slow and gradual events that took place over long periods of time?
A- Catastrophism
B- Uniformitarianism
C- Gradualism
D- Canyonism
C- Gradualism
A group of organisms that can reproduce and have fertile offspring is a...
A- Species
B- Population
C- Family
D- Group
A- Species
Structures that have a similar function, but are not evidence of a common ancestor are called...
A- Analogous structures
B- Homologous structures
C- Vestigial structures
A- Analagous structures
Which type of selection favors both extreme phenotypes?
A- Bell Curve
B- Directional Selection
C- Stabilizing Selection
D- Disruptive Selection
D- Disruptive Selection
Competition among males (such as male deer fighting each other with their antlers) is called...
A- Intersexual Selection
B- Intrasexual Selection
B- Intrasexual Selection
A measure of an organism’s ability to survive and reproduce relative to other members of the population in a given environment.
A- Adaptation
B- Fitness
C- Evolution
D- Mutation
B- Fitness
When two or more species evolve together, their evolutionary paths become connected and species evolve in response to changes in each other. This is called...
A- Competitive evolution
B- Adaptive evolution
C- Coevolution
D- Beneficial evolution
C- Coevolution