LS5 T8L1 Early Evidence for Evolution

A fossil of an extinct dinosaur is found and the anatomy of the fossil shows similarities to that of a bird. What could this mean?

• This is purely by chance and isn't significant
• The extinct dinosaur and modern bird share a common ancestor
• All dinosaurs evolved into birds and that's why there aren't any dinosaurs alive today
• Dinosaurs choose to fly, and evolved into birds to escape predation and capture food

Relative dating of rock layers tells us that the deeper we dig, 

• the younger the rocks get.
• the simpler the rocks get.
• the harder the rocks get.
• the older the rocks get.

When all individuals in a species have died, it is called

• evolution
• extinction
• adaptation
• natural selection

DNA analysis from these organisms would show they have

• identical DNA sequences.
• the same number of bones.
• similar DNA sequences.
• the same number of chromosomes.

What is the study of the distribution of species in geographic space and through time?

• Embryology
• Biogeography
• Biogeology
• Speciology

The theory that natural disasters such as floods and volcanic eruptions have happened often during Earth’s long history.  These events shaped landforms and caused species to become extinct. (a)  

• theory of catastrophism
• Theory of evolution
• Theory of plate tectonics
• Theory of uniformitarianism

The preserved remains of an organism, or the trace evidence of an organism’s existence in the past.

• Fossil

• Remnant

• Artifact

• Relic

What does Darwin's theory of evolution suggest?

• species change over time
• extinct species are not related to living species
• different species can interbreed
• animals that look alike are most closely related

Predict which moth would increase in population

• light 
• dark

How do fossils provide evidence that evolution has happened on Earth?

• Fossils show how the sizes of certain animals has changed drastically over millions of years
• Fossils show that some species have gone extinct
• Fossils show how life forms present today are different than those from the past
• Different sedimentary rock layers provide evidence for how the environment has changed over time