Fossils
Person D
What do fossils tell us about that animal/species?
Give 3 things
How they walked, size, traveled alone or in groups?
Person B
Wisdom teeth are examples of what type of evidence of evolution?
vestigial
Person B
A whale and a bat are an example of what type of structure? Explain why?
Homologous. They have the same structure but different function
Person B
Look a image 1 on the white board. Order the fossils from oldest to youngest.
A, E, D, G, F, C, B
Person B
What 3 things are needed for fossils to form?
sediments, water, pressure
Person A
Body parts that are non-functional or no longer needed.
Vestigial Structures
Person D
Give an example of homologous structures
whale fin and human hand
Answers vary
Person B
What is the name of the law that determines how old a fossil or layer is?
Law of superposition.
Person C
How do we (scientists) know that animals have existed in the past (like dinosaurs) even though they aren't alive today?
From fossils
Person B
Same structure, different function
Homologous Structures
Person D
Why do embryos of different organisms look similar?
Because they share a common ancestor
Person A
Which fossil is older than fossil C but younger than fossil E?
Fossil F
Person C
Name and explain 3 different types of fossils
Preservation: buried/frozen quickly
Petrification: Bones turn into stone by minerals
Trace: imprints (footprints) left behind
Person A
Different structure, same function
Analogous Structures
Person C
Animals that have changed over time are due to ____ to their environment over long periods of time
adapting
Person C
If fossil C is 65-95 myo and fossil E is 150-200 myo, what is the relative age of fossil D?
Fossil D is 95-150 myo
Person B
Why doesn't every animal that dies turn into a fossil?
They aren't buried quickly, no water, too little or too much pressure.
Person C
Which 2 structures suggest common ancestry?
Homologous and Vestigial
Person C
Give an example of analogical structures
butterfly wing and bird wing
answers vary
Person D
Which 2 fossils went extinct at the same time?
Fossils D and G
The both end on level 6.