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A Level H1 Biology Evolution Diversity Quiz
Free Exam-Derived DeepSeek V4 Pro A Level H1 Biology Evolution Diversity quiz with questions and answers for Singapore students. This page is rendered as a direct URL so the questions and answers can be discovered without pressing in-page buttons.
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Questions
Stage 3 Skipped – No Exam-Derived Templates Available for Evolution & Diversity
Section 1: Questions 1–5
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Which of the following is the primary mechanism of evolution proposed by Charles Darwin?
A) Inheritance of acquired characteristics
B) Use and disuse of organs
C) Natural selection
D) Genetic drift -
In a population of beetles, green beetles are more easily seen by predators than brown beetles. Over time, the frequency of brown beetles increases. This is an example of:
A) Gene flow
B) Genetic drift
C) Stabilizing selection
D) Directional selection -
Which of the following provides evidence for evolution through homologous structures?
A) The presence of gill slits in human embryos
B) The similar bone arrangement in the forelimbs of humans, bats, and whales
C) The presence of wisdom teeth in humans
D) The antibiotic resistance in bacteria -
The scientific name for human beings is Homo sapiens. According to binomial nomenclature, sapiens refers to the:
A) Genus
B) Class
C) Order
D) Species -
Which of the following is an example of a vestigial structure in humans?
A) Appendix
B) Heart
C) Lung
D) Eye
Section 2: Questions 6–10
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A population of birds becomes separated by a mountain range. Over many generations, they evolve into two distinct species. This is an example of:
A) Sympatric speciation
B) Allopatric speciation
C) Artificial selection
D) Stabilizing selection -
Which of the following statements best describes the concept of “survival of the fittest”?
A) The strongest individuals always survive.
B) Individuals with traits best suited to their environment are more likely to survive and reproduce.
C) Organisms can pass on characteristics acquired during their lifetime.
D) Evolution always leads to more complex organisms. -
In the Galápagos finches studied by Darwin, beak size varied with the type of food available. Different beak sizes in the finches are an example of:
A) Homologous structures
B) Artificial selection
C) Adaptation
D) Convergent evolution -
Which of the following contributes to genetic variation in a population?
A) Mutation and sexual reproduction
B) Mitosis and budding
C) Natural selection only
D) Binary fission only -
The rise of antibiotic-resistant bacteria can be explained by:
A) Bacteria learning to resist the drug.
B) Bacteria becoming immune due to lack of exposure.
C) Pre-existing resistant mutants surviving and reproducing when the antibiotic is present.
D) Antibiotics causing mutations to make bacteria resistant.
Section 3: Questions 11–15
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A phylogenetic tree is used to show:
A) The feeding relationships in an ecosystem.
B) The evolutionary relationships among species.
C) The population size of different species.
D) The geographical distribution of organisms. -
Which of the following is an incorrect comparison between Lamarck’s and Darwin’s theories?
A) Lamarck believed in inheritance of acquired traits, while Darwin focused on natural selection.
B) Darwin’s theory involves variation within populations, while Lamarck’s did not emphasize variation.
C) Both Lamarck and Darwin proposed that organisms can change over time.
D) Lamarck’s theory was widely accepted during his time, while Darwin’s was rejected. -
Which of the following isolation mechanisms is reproductive isolation before fertilization?
A) Hybrid inviability
B) Temporal isolation
C) Hybrid breakdown
D) Postzygotic isolation -
The fossil record provides evidence for evolution because it shows:
A) That all organisms appeared at the same time.
B) A gradual change in life forms over time, with simpler organisms in older rocks.
C) That species have remained unchanged throughout history.
D) The exact genetic code of ancient organisms. -
In artificial selection, which factor determines which organisms survive and reproduce?
A) Environmental pressures
B) Humans selecting for desired traits
C) Random chance
D) Predation
Section 4: Questions 16–20
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A small group of individuals colonizes an isolated island. The new population has lower genetic diversity than the mainland population. This is an example of:
A) Genetic bottleneck
B) Founder effect
C) Gene flow
D) Stabilizing selection -
Which of the following is an example of a postzygotic reproductive barrier?
A) Different mating calls in frogs.
B) Incompatible genital structures.
C) A horse and a donkey producing an infertile mule.
D) Flowers blooming at different times. -
The similar body shape of sharks (fish) and dolphins (mammals) is an example of:
A) Homologous structures
B) Convergent evolution
C) Adaptive radiation
D) Coevolution -
According to Darwin’s theory, the giraffe’s long neck evolved because:
A) Giraffes stretched their necks to reach high leaves, and this trait was passed on.
B) Giraffes with slightly longer necks could reach more food, survived better, and passed on the trait.
C) The environment directly induced neck growth.
D) Giraffes needed long necks to survive and developed them over a single generation. -
In a population, the allele frequency of a gene remains constant from generation to generation, unless specific factors cause change. This concept is described by:
A) Law of use and disuse
B) Hardy-Weinberg equilibrium
C) Lamarckian evolution
D) Punctuated equilibrium
Answers
Answer Key
- C
- D
- B
- D
- A
- B
- B
- C
- A
- C
- B
- D
- B
- B
- B
- B
- C
- B
- B
- B