Exploring Evolutionary Trees and Common Ancestry

What is the term used to describe the series of ancestors leading back through time for a species?

• Evolutionary lineage

• Genetic sequence

• Ancestral tree

• Species timeline

Which period is known for the existence of the modern bird lineage?

• Triassic Period

• Cretaceous Period

• Jurassic Period

• Permian Period

Which of the following is considered one of the first birds?

• Diplodocus

• Pterosaur

• Anchiornis

• Velociraptor

What do evolutionary trees help scientists understand?

• Evolutionary relationships

• Species' dietary habits

• Climate changes

• Geological formations

What does a branch point in an evolutionary tree represent?

• A species extinction event

• A common ancestor

• A genetic mutation

• A climatic shift

How long ago did mesites and sandgrouse share a common ancestor?

• 30 million years ago

• 75 million years ago

• 45 million years ago

• 60 million years ago

Which birds are more closely related?

• Doves and pigeons

• Doves and mesites

• Mesites and sandgrouse

• Sandgrouse and doves

What characteristic did the common ancestor of birds possess?

• Armored and horned

• Aquatic and finned

• Four-winged and scaled

• Two-legged and feathered

How long ago did birds' common ancestor with dinosaurs live?

• 250 million years ago

• 100 million years ago

• 200 million years ago

• 165 million years ago

What modern bird is mentioned as a direct descendant of dinosaurs?

• Ostrich

• Hummingbird

• Rock dove

• Eagle