Understanding Divergent Evolution

What is the main idea behind the interconnectedness of all species on Earth?

• All species share a common ancestor.

• Interconnectedness is a myth.

• Species evolve independently without any connections.

• Only mammals are interconnected.

What is divergent evolution?

• The process where two species merge into one.

• The adaptation of a species to a new environment.

• The evolution of two new species from a common ancestor.

• The extinction of a species over time.

What is allopatric speciation?

• Speciation occurring without geographical barriers.

• Speciation that occurs in the same geographical area.

• Speciation due to geographical isolation.

• Speciation that happens only in plants.

Which of the following is an example of sympatric speciation?

• Fish species separated by a river.

• Two populations separated by a mountain range.

• Orchid populations that do not interbreed despite living in the same area.

• Birds migrating to different continents.

How do scientists use homologous structures to support the theory of divergent evolution?

• By indicating that structures are unique to each species.

• By proving that species evolve independently.

• By demonstrating that different species have similar structures due to a common ancestor.

• By showing that all species have identical structures.

Which of the following is an example of homologous structures?

• The beak of a bird and the mouth of a fish.

• The eyes of a cat and a dog.

• The flipper of a whale and the wing of a bat.

• The wings of a butterfly and a bat.

What evidence supports the idea that elephants and rabbits share a common ancestor?

• They have the same number of chromosomes.

• They have similar diets.

• Their tusks and teeth are homologous structures.

• They live in similar habitats.

What recent discoveries have been made about feathered dinosaurs?

• They lived only in North America.

• They have a common ancestor with prehistoric birds.

• They were the first species to fly.

• They are unrelated to modern birds.

What role do geographical barriers play in divergent evolution?

• They facilitate the merging of species.

• They have no impact on species evolution.

• They prevent any form of evolution.

• They can lead to the formation of new species by isolating populations.

What is the significance of homologous structures in understanding evolution?

• They show that all species are identical.

• They are unique to each species.

• They indicate a shared evolutionary history.

• They prove that species evolve independently.