Evidence of evolution Unit 7 Test

Which rock fossil is the oldest?

• 1

• 2

• 3

• 4

Which is not true about relative dating?

• It is based on which layer fossils are found in?

• It tells us an absolute age for the fossil

• It can be used to place fossils in order from oldest to youngest?

• It has been used for over a hundred years.

Which is not true about the geologic time scale?

• It breaks the 4.6 billion year history up into eons, eras, and periods

• It is incomplete in the listing of extinct living organisms

• It shows the evolution of organisms through time

• It is broken into equal intervals of time

Which is not true about dinosaurs?

• They were on earth for over 160 million years

• Birds evolved from dinosaurs

• Humans hunted dinosaurs

• Dinosaurs evolved from reptiles

When comparing leg bones, which animal seems to be more closely related to the ox

• Horse

• Whale

• Bird

• Human

Which organisms seems to have the most similar bone structure to the human hand?

• Horse

• Ox

• Whale

• Bird

How many toes did the horse's ancestor Hyracotherium have?

• 1

• 2

• 3

• 4

What was the general trend in body size for the ancestors of the horse

• Body size grew larger over time

• Body size grew smaller over time

• Body size fluctuated back and forth over time

• Body size did not change over time

What was the general trend for change in the tail of the ancestors or a horse?

• Tails changed from being fully stranded to partially stranded and then to a solid tail.

• Tails changed from a solid tail to partially stranded to fully stranded.

• Tails did not change.

• Tails changed randomly

If an organism no longer uses a structure, that anatomic structure may disappear or remain underdeveloped. We call that structure

• Homologous

• Analogous

• Vestigial

• Undefined