Vocab
Disturbed
Fossil and rock layers
Comparative Anatomy/ Embryology
Review/miscellaneous
100
The preserved remains of something that was once living.
A fossil.
100
Where are older rock layers always located?
Towards the bottom
100
Fossil A is found near the surface of the ground. Fossil B is found much deeper down. Would these fossils have formed at the same time? Why/why not?
No, different layers
100
Structures that are inherited from a common ancestor are
Homologous
100
What must be present in order for an intrusion to form?
Magma/igneous rock
200
This is a break or crack in a layer of rock.
Fault
200
List in order of youngest to oldest.
A,d,c,b,e
200
A fossil is found in a rock layer that is 5000 years old. How old might the fossil be?
Around 5000 years ago
200
Which type of comparative anatomy tells us that two species are not closely related?
Analogous structures
200
How old is the Earth?
4.6 billion years old
300
This states that younger rocks always lie above older rocks.
Law of Superposition
300
Q. Look at the diagram, what layer did animal E first show up in?
Layer 6
300
If a fossil is found in a particular rock layer, what can we say about both the fossil and the rock layer?
The formed at the same time./ around the same age
300
What do all of these have in common?
Vertebrae
300
Would a piece of pottery be an example of a fossil? Why/why not
No, not living/animal/insect
400
This is the process of determining the order of past events compared to other events.
Relative Dating
400
List the events of layers in order with the oldest on the bottom. (Including any erosion or cross-cutting relationships)
s,erosion,intrusion,t,a,n
400
D. Found in many areas and lived a short time period (only in one type of layer)
400
What does homologous structures mean?
Some organisms that share a common ancestor have features that have different functions, but similar structures
400
What two things to all embryos with vertebrates have?
Gill slits and tails
500
What does the principle “law of cross-cutting relationships” state?
states that the geologic feature/layer which cuts another is the youngest
500
fossil B is older than fossil C. Fossil A is older than both fossil B and C. Which geologic principle is this describing?
Law of superposition
500
What are the two characteristics that an index fossil must have to be most helpful?
1.found in one geologic rock layer
2. Found in different locations
500
What was an appendix used for and Why is an appendix a vestigial structure?
We used it in our digestive process. We can survive without it/ we eat foods that are easier to digest.
500
Q.
According to the images shown, which species are most related?
A. Calf and rabbit
B. Fish and tortoise
C. Salamander and chick
D. Pig and human
A. Calf and rabbit