fossil records
Comparative anatomy
Embryology
Molecure biology
Biogeography
100
What are fossils?
Fossils are the traces or remains of a dead organism.
100
What is a homologus structure?
Features in some organisms that have a similar function.
100
What do you study in the study of embroylogy?
Embryos.
100
What is Molecular biology?
A sequence of amino acids from different organisms.
100
What is biogeography?
The study of the distribution of earth’s organisms.
200
Why are fossils important?
Fossils show that life on earth had changed and shows eveloution.
200
What is an Analogous structures?
Structures in some organisms that have closely related functions but don’t share a common ancestor.
200
The closer the species are the more they...
Look similar in their embryo.
200
Organisms that have more genes and amino acids in common are what?
More related.
200
How does biogeography support the theory of evolution.
Supports the theory of evolution by multiple organisms that have similar traits being found all around the world.
300
What law indicates that the older layers of rock lay on the bottom while the younger layers are on top?
Law of superstition
300
What is an example of Analogous structures?
The wings of an insect and a bird allow them to fly but they all evolved to fly at different times
300
The similarities found in the embryos of species that grow up to be different indicate what?
Common ancestory.
300
What is a cladogram
A diagram used to show how closely related organisms are.
300
Fossils of Lystrosaurus were found in Africa, Asia, and Antartica. How does this support biogeography?
Multiple organisms that have similar traits are found all around the world.
400
What are fossils usaually found in?
Sedimentary rocks
400
What is a Vestigial structure?
Structures that serve no purpose in specific organisms.
400
What is the earliest stage of development called?
Embryo.
400
Tracking mutations in sequences of DNA can..
Trace evolutionary history.
400
What does biogeography tell us?
This tells us that the world has changed significantly, and how species adapt to their environment.
500
How do you know if the fossils are newer or older?
The newer fossils are on top and older fossils are farther down.
500
What do Homologous structures indicate?
Common ancestor.
500
By looking at the embryos what could u indicate?
They share a common ancestor.
500
Draw an example of a cladogram (double points)
Look on board
500
What are ways biogeography show evolution?
By showing that species in different areas evolve to adapt to their environments.