Embryology
A prenatal stage of an organism, comes from other organisms reproducing
What is an embryo?
To trace differences and similarities in DNA and other molecules
What is Molecular Evidence?
Naturally preserved remains of an organism that once lived
What is a fossil?
Bone structures that are similar in different animals but different proportions
What are Homologous Structures?
Organs that are useless today were vital to ancestors
What are Vestigial Structures?
Studying similar embryos until they develop and change
What is Comparative Embryology?
A self-replicating material which is present in nearly all living organisms
What is DNA?
Looking at fossil similarities to determine ancestors and prove evolution
What is Comparing Fossils?
Because they give the blueprints for the homologous structure
Why are genes important in homologous structures?
An organ in humans that is Vestigial and not used in our bodies
What is the Appendix?
Over time the embryos change and become physically different
What is Development?
A unique sequence of DNA that is like the blueprints for an organism
What is a gene?
History of life documented by fossils
What is the fossil record?
Because animals have similar ancestors, they evolve from the same animals
Why do homologous structures occur?
The reason why the appendix is no longer needed
What is Adaption?
What embryos are developed in by reptiles
What is an egg?
The branch of biology that deals with the structure and function of the macromolecules (proteins and DNA).
What is Molecular Biology?
The person who studies and compares fossils
What is a paleontologist?
the arm of a human, the wing of a bird or a bat, the leg of a dog and the flipper of a dolphin or whale are
What is a Homologous structures?
The organism newly adapts and evolves and the feature is no longer needed.
Why do vestigial structures occur?
Absorbing nutrients and growing over time
How do embryos develop?
A molecule containing a very large number of atoms, such as a protein, nucleic acid, or synthetic polymer.
What is a macromolecule?
When you compare fossils they show similar structures to current animals
How does the fossil record prove evolution?
Because they show that similar genes in different animals means similar ancestors which proves over time organisms change
How does homology prove evolution?
The appendix, tail bone, wisdom teeth, and inside corner of the eye
What is Human Vestigiality?