Fossils
Remains or traces of once living organisms are known as ____.
Fossils
Who is best known for their theory of evolution?
Charles Darwin
Charles Darwin considers evidence from this branch of study to be the strongest class of facts in support of his theory of evolution.
Embryology
Parts of organisms that have no present day function are known as this type of structure. For example, the appendix.
Vestigial Structures
The presence of shell and crab fossils in a layer of the Earth can tell us what about that location at some point in history?
It was once aquatic
What is relative dating?
Any method of determining whether an event or object is older or younger than other events or objects.
The study of ______ is the theory that all organisms on earth, whether living or extinct, are related, and that we all evolved from a common ancestor.
Morphology
What is an embryo?
An organisms early pre-birth stage of development.
Parts of organisms that are similar in some ways (appearance or function) but have different ancestral origins are known as these type of structures.
Analogous Structures
Why was Charles Darwin originally visiting the Galapagos Islands?
To make maps of the islands
Law of Superposition
Although Darwin has finches named after him, what was the first bird he studied on the Galapagos Islands?
Mockingbirds
The comparison of embryo development across species is known as this type of embryology.
Comparative Embryology
Structures that have different mature forms in different organisms, but develop from the same embryonic tissue are known as these type of structures.
Homologous Structures
Our pinky toes are an example of which type of structure?
Vestigial Structure
Name three types of fossils.
Answers may vary
Amber Frozen Remains
Tar Pits Permineralized
Carbonized Trace
Cast and Mold
True or False: Humans share characteristics with single celled organisms like amoeba.
True
True or false: The field of study for embryology stops once an organism reaches its fetal stage or when you can distinguish which species it belongs to.
True
Give an example of a homologous structure (similar structure with different functions)
Answers may vary
Human hand, cat paw, bat wing etc.
When looking at the layers of sedimentary rocks, how do we date the fossils in the bottom layer? Oldest or newest?
Oldest
Describe what index fossils are.
Fossils from forms of life that existed during limited periods of geologic time. Because they existed during a specific time period, they are used as guides for determining the age of rocks in which they are preserved.
What is embryology?
The study of the development of embryos from fertilization until they become fetuses, or the point at which you can distinguish the species.
In our embryology lab, what is one feature that all embryos shared until stage two or three of their development?
A tail
Give an example of an analogous structure (similar function without a common ancestor)
Answers may vary
Bird, insect, bat (wings)
How can we use DNA to support the theory of evolution?
It shows all species originate from a common ancestor