Arkansas ATLAS Biology EOC Practice Test

Correct answer: A

The correct answer is Inherited traits that improve survival or reproduction become more common over generations.

1. Identify the biology idea: Decide whether the question is about cells, energy, genetics, evolution, ecosystems, body systems, or scientific evidence.
2. Use the evidence: Natural selection changes population trait frequencies because some inherited traits improve reproductive success in a specific environment.
3. Check the claim: Make sure the answer matches the biological process, model, observation, or data described.

Correct answer: B

The correct answer is It provides differences that selection can favor or disfavor.

1. Identify the biology idea: Decide whether the question is about cells, energy, genetics, evolution, ecosystems, body systems, or scientific evidence.
2. Use the evidence: Natural selection requires variation among individuals and differences in survival or reproduction.
3. Check the claim: Make sure the answer matches the biological process, model, observation, or data described.

Correct answer: C

The correct answer is Homologous structures and similarities in DNA sequences.

1. Identify the biology idea: Decide whether the question is about cells, energy, genetics, evolution, ecosystems, body systems, or scientific evidence.
2. Use the evidence: Shared underlying structures and genetic sequences can indicate inheritance from a common ancestor.
3. Check the claim: Make sure the answer matches the biological process, model, observation, or data described.

Correct answer: D

The correct answer is An inherited trait that increases fitness in a particular environment.

1. Identify the biology idea: Decide whether the question is about cells, energy, genetics, evolution, ecosystems, body systems, or scientific evidence.
2. Use the evidence: An adaptation is an inherited characteristic that can improve survival or reproduction under specific conditions.
3. Check the claim: Make sure the answer matches the biological process, model, observation, or data described.

Correct answer: A

The correct answer is Resistant bacteria survived and reproduced more successfully.

1. Identify the biology idea: Decide whether the question is about cells, energy, genetics, evolution, ecosystems, body systems, or scientific evidence.
2. Use the evidence: Preexisting or newly arising variation can allow resistant bacteria to survive treatment and pass on resistance.
3. Check the claim: Make sure the answer matches the biological process, model, observation, or data described.

Correct answer: B

The correct answer is Changes in organisms and environments through geologic time.

1. Identify the biology idea: Decide whether the question is about cells, energy, genetics, evolution, ecosystems, body systems, or scientific evidence.
2. Use the evidence: Fossils reveal past organisms and conditions and help scientists infer patterns of change over time.
3. Check the claim: Make sure the answer matches the biological process, model, observation, or data described.

Correct answer: C

The correct answer is Divergence through different selection pressures and genetic changes.

1. Identify the biology idea: Decide whether the question is about cells, energy, genetics, evolution, ecosystems, body systems, or scientific evidence.
2. Use the evidence: Geographic or reproductive isolation can allow populations to diverge until they become distinct species.
3. Check the claim: Make sure the answer matches the biological process, model, observation, or data described.

Correct answer: D

The correct answer is The variety of genes, species, and ecosystems in a region or on Earth.

1. Identify the biology idea: Decide whether the question is about cells, energy, genetics, evolution, ecosystems, body systems, or scientific evidence.
2. Use the evidence: Biodiversity includes genetic diversity, species diversity, and ecosystem diversity.
3. Check the claim: Make sure the answer matches the biological process, model, observation, or data described.

Correct answer: A

The correct answer is Fewer individuals may carry traits that provide resistance.

1. Identify the biology idea: Decide whether the question is about cells, energy, genetics, evolution, ecosystems, body systems, or scientific evidence.
2. Use the evidence: Low genetic diversity can reduce the chance that some individuals have protective traits when conditions change.
3. Check the claim: Make sure the answer matches the biological process, model, observation, or data described.

Correct answer: B

The correct answer is Farmers breed plants that produce larger fruits over many generations.

1. Identify the biology idea: Decide whether the question is about cells, energy, genetics, evolution, ecosystems, body systems, or scientific evidence.
2. Use the evidence: Artificial selection occurs when humans choose which organisms reproduce based on desired traits.
3. Check the claim: Make sure the answer matches the biological process, model, observation, or data described.