EOC Domain 4: Evolution

​EOC Domain 4: Evolution

By Derek Hathaway

Multiple Choice

What must exist in a population before natural selection can act on it?

• Genetic variation
• Species extinction
• Population density
• Environmental stability

Multiple Choice

When individuals produce more offspring than the environment can support, what is this called?

• Sustainable growth
• Overpopulation
• Population control
• Resource depletion

Multiple Choice

What condition must be true for natural selection to cause a population to change over generations?

• Uniform traits among individuals that enhance survival.
• Lack of competition for resources in the environment.
• Constant environmental conditions over generations.
• Variation in traits among individuals that affects fitness.

Multiple Choice

Which pattern of natural selection favors the average traits in a population?

• Stabilizing selection
• Sexual selection
• Disruptive selection
• Directional selection

Multiple Choice

What is the difference between a gene pool and gene flow?

• The gene pool is the movement of genes, while gene flow is the total genetic diversity.
• Gene flow refers to the genetic traits within a single population, while the gene pool is about multiple populations.
• The gene pool is the total genetic diversity in a population, while gene flow is the movement of genes between populations.
• The gene pool is the exchange of genetic material, whereas gene flow is the genetic makeup of a species.

Multiple Choice

What is the connection between reproductive isolation and speciation?

• Reproductive isolation drives speciation by preventing gene flow between populations.

• Speciation occurs without any form of reproductive barriers.
• Reproductive isolation enhances gene flow between species.
• Reproductive isolation is irrelevant to the process of speciation.

Multiple Choice

What do we call the random change in allele frequencies that occurs in small populations?

• genetic variation
• genetic drift
• population bottleneck
• allele fixation

Multiple Choice

What causes biological resistance? For example, what allows bacteria to become resistant to antibiotics?

• Bacteria become resistant due to environmental toxins and nutrient scarcity.
• Resistance is caused by viral infections and host immune responses.
• Bacteria develop resistance through exposure to high temperatures and radiation.
• Bacteria become resistant to antibiotics due to genetic mutations and selective pressure.

Multiple Choice

What are the major evidences for evolution?

• Meteorological patterns, geological formations, and climate changes.
• Fossil records, comparative anatomy, genetic similarities, and observed natural selection.
• Cultural adaptations, technological advancements, and historical events.
• Species distribution, ecological interactions, and behavioral traits.