Strucutes
A structure has the same functions in different organisms, but does not show common ancestry
What are analogous structures?
Organic molecules that serve as the primary building blocks of proteins
What are amino acids?
Bones turned into stone
What are fossils?
An organism still in development in the womb
What are embryos?
the only way that evolution occurs in a species
What is a population?
A homologous structure no longer used in an organism
Shared amino acid sequences and DNA codons of animals in different species
What is molecular proof of evolution?
Organisms become trapped under layers of rock, mud, sand, etc and are preserved
How are fossils formed?
Comparing embryos of different animals
What is proof of common ancestry?
A species fully dying out or becoming irrelevant to their ecosystem processes
What is extinction?
A structure that shows common ancestry due to similar structures in different organisms
What are homologous structures?
Where all genetic material is stored and blueprints for an organism are copied
What is DNA?
How extinct animals can be discovered
What is fossil excavation?
A model to explain how embryos closely resemble each other and then diversify
What is the funnel theory?
Doesn't explain the phenomena, is just a scientific description of the observed event.
What are laws?
Structures that no longer serve a function/have a reduced function
What are vestigial structures?
A protein that is present in most eukaryotic organisms, common molecular evidence for proving evolution
What is cytochrome c?
Older fossil layers will appear lower in the ground than newer fossil layers
What is the law of superposition?
A model explaining how embryos only appear similar in the middle of development
What is the hourglass theory?
A hypothesis supported by evidence that can change based on new evidence.
What are theories?
Front limbs of mammals that all have the same arrangement of bones
What is an example of homologous structures?
Amino acids in two organisms of different species are similar
What is molecular homology?
A process that can potentially disturb the order of fossil records inside the ground
What are earthquakes?
The most commonly used groups of animals in examples of embryology
What are vertebrae?
organisms of a different species both having similar genetic makeup to an ancient, extinct organism
What is common ancestry?