Exploring Evolution and the Giraffe's Unique Anatomy

What did the ancestors of blue whales originally look like?

• Large aquatic animals with fins

• Small amphibious creatures

• Four-legged animals with a taste for seafood

• Bird-like creatures with wings

What is the correct term for the process that describes heritable changes over time?

• Metamorphosis

• Evolution

• Mutation

• Adaptation

What is the significance of Charles Darwin's work?

• He proposed the theory of evolution

• He introduced the concept of metamorphosis

• He discovered DNA

• He invented the microscope

Which example illustrates natural selection?

• Plants growing towards sunlight

• A bear learning to fish

• Peppered moths changing color due to industrial pollution

• A dog being trained to sit

How do adaptations affect organisms?

• They are always beneficial

• They prevent mutations

• They can come with trade-offs

• They ensure survival in all environments

What does the recurrent laryngeal nerve in giraffes demonstrate?

• Evolutionary adaptation

• Efficient design

• An evolutionary quirk due to neck lengthening

• A direct route from brain to larynx

What is a vestigial trait?

• A trait that improves survival

• A remnant of a trait from an ancestor

• A newly developed characteristic

• A dominant genetic feature

What demonstrates the shared ancestry of all life on Earth?

• Neither A nor B

• Both A and B

• The fossil record

• The universal genetic code

Why do single-celled organisms still exist?

• They have evolved into multi-celled organisms

• They cannot evolve further

• They are successful in their own environmental niches

• They are the earliest forms of life

Why are there still monkeys if humans evolved from them?

• Monkeys stopped evolving

• Humans did not evolve from monkeys

• Humans and monkeys have a common ancestor

• Monkeys evolved into humans