Vocabulary
Fossil Record
Homologous Structures
Embryology
DNA
100
the mineralized remains of organisms
What are fossils?
100
The state of no longer existing
What is "extinction"?
100
The prefix in the word "homologous" means this
What is the same?
100
An embryo shows the _________ from fertilization to the fetus stage
What is development?
100
An organism's genetic code
What is DNA?
200
the study of the structure of living organisms and their parts
What is Anatomy?
200
Fossils are most often found in this type of rock.
What is Sedimentary Rock?
200
A humerus bone in a human's arm and a humerus bone in a batwing proves that these two organisms have a _____________.
What is a common ancestor?
200
An embryo begins developing right after this
What is fertilization?
200
When comparing DNA, you can count the similarities and differences in the _____________ .
What are base pairs?
300
the developing organism between fertilization and birth
What is an embryo?
300
The "law" that states the further down a fossil is found from the ground, the older the organism is.
What is the Law of Superposition?
300
The branching points on a cladogram with specific traits that distinguish between organisms.
What are nodes?
300
Which two organisms are most closely related?
What are 3 and 4?
300
DNA sequences of different species can determine evolutionary____________.
What are relationships?
400
a diagram that shows how scientists think different groups of organisms are related
What is a cladogram?
400
a technique used to determine which of 2 fossils is older by looking at the rocks they’re in
What is relative dating?
400
Another term for a cladogram
What is a phylogenetic tree?
400
This feature is present in the embryonic development of fish, pigs, and humans but only present in the adult form of the fish and pig.
What is a tail?
400
The term DNA stands for
What is deoxyribonucleic acid?
500
the calendar of Earth’s history; and shows life on Earth over billions of years?
What is Geologic Timescale?
500
a technique used to determine the actual age of a fossil based on the testing of the radioactive elements it contains.
What is Radioactive (Absolute) Dating?
500
The forearm of a human, the front leg of a cat, and the wing of a bat both features these two homologous bones.
What are the radius and ulna?
500
The structures in most embryos that become the lungs of humans or gills of fish are called ___________ .
What are pharyngeal slits?
500
Using DNA sequencing, the scientist Mitchell Sogin tried to prove that all life evolved from this organism.
What is a Sponge?