all of the fossils that have been discovered and what scientists have learned from them

The young organism that develops from a zygote.

Homologous structures

structures that are similar in different species and that have been inherited from a common ancestor.

Term used to refer to a groups of related organisms that has dies out and has no living members.

Large organic molecule made of carbon, hydrogen, oxygen, nitrogen and sometimes sulfur.

A relationship in which one organism lives inside another organism's cells.

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Diversity 2.4-5

Lessons 4 and 5 included

Term	Definition
Fossil Record	all of the fossils that have been discovered and what scientists have learned from them
embryo	The young organism that develops from a zygote.
Homologous structures	structures that are similar in different species and that have been inherited from a common ancestor.
extinct	Term used to refer to a groups of related organisms that has dies out and has no living members.
Protein	Large organic molecule made of carbon, hydrogen, oxygen, nitrogen and sometimes sulfur.
Endosymbiosis	A relationship in which one organism lives inside another organism's cells.