Evidence of Evolution-4/2/2026

Open Ended

How do you think the timeline of life on Earth helps us understand the evidence for evolution?

Multiple Choice

Which event marks the beginning of life on Earth according to the timeline?

• Formation of the atmosphere and water

• Appearance of multicellular organisms

• Emergence of mammals

• First human ancestor

Multiple Choice

Which of the following best describes biogeography?

• The study of how organisms interact with each other

• The study of where organisms live now and where they and their ancestors lived in the past

• The study of animal behavior

• The study of plant physiology

Multiple Choice

Which of the following statements about Galápagos finches is correct?

• They all descended from different mainland ancestors.

• They adapted to highly specific food sources on various islands.

• They did not undergo divergence.

• They are not closely related.

Open Ended

How do biogeographical patterns and fossil evidence together support Darwin's theory of evolution by natural selection?

Multiple Choice

Which of the following bird species are examples of convergent evolution due to similar environmental pressures?

• Rheas, Ostriches, Emus

• Finches, Sparrows, Robins

• Penguins, Ducks, Swans

• Eagles, Hawks, Falcons

Open Ended

What is the significance of transitional fossils like Tiktaalik in understanding evolutionary history?

Multiple Choice

Which of the following best describes homologous structures?

• Structures that are inherited from a common ancestor and share similar bone layouts

• Structures that have lost their original function

• Structures found only in mammals

• Structures that are unique to each species

Open Ended

Compare the evolutionary changes in whale anatomy shown in the diagrams. What adaptations can you infer from the transition of land mammals to modern whales?

Multiple Select

Select all examples of vestigial structures from the following list:

• Whale pelvis

• Human tailbone

• Cave fish eyes

• Cat whiskers

Open Ended

Explain how the evidence of vestigial structures in whales supports the theory of evolution.

Multiple Choice

Which of the following is an example of a vestigial structure in humans?

• Appendix

• Heart

• Liver

• Kidney

Multiple Choice

Which of the following are analogous structures?

• Wing of a bee and wing of a bird

• Wing of a bird and arm of a human

• Fin of a fish and flipper of a whale

• Tail of a lizard and tail of a fish

Open Ended

How does embryological evidence support the theory of common ancestry among vertebrates?

Multiple Choice

Which of the following statements about the universal genetic code is correct?

• It is nearly identical in almost all organisms.

• It is unique to humans.

• It is only found in bacteria.

• It is not used for information transfer.

Multiple Choice

Which organism has the fewest hemoglobin amino acid differences compared to humans, according to the chart?

• Dog

• Bird (Chicken)

• Macaque

• Lamprey

Open Ended

Explain how molecular homologies, such as amino acid differences in proteins, provide evidence for evolutionary relationships between species.

Multiple Choice

According to the Cytochrome C Evolution chart, what organism shared the most recent common ancestor with humans?

• Rhesus monkey

• Chimpanzee

• Rabbit

• Cow

Multiple Select

Which of the following are key requirements for natural selection to occur, according to the Grants' data?

• Variation

• Environmental Pressure

• Evolutionary Change

• Genetic Drift

Open Ended

How does understanding the timeline of life on Earth help us interpret evidence for evolution?

Multiple Choice

Based on the Life Timeline, which event occurred first?

• Earth forms

• First Eukaryotic cells

• Dinosaurs appear

• Modern humans appear