The three main branches of the tree of life- Bacteria, Archaea, and Eukarya

6 major categories of all life, 4 Eukarya, 1 Bacteria, 1 Archaea

Branch of science studying different organisms interacting with one another and the environment

Group of organisms living in the same environment and interacting with one another

Change of characteristics over time

When certain organisms can survive in an environment by changing

Changes in an organism that help it survive

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1.2 Vocab

Term	Definition
Domain	The three main branches of the tree of life- Bacteria, Archaea, and Eukarya
Kingdom	6 major categories of all life, 4 Eukarya, 1 Bacteria, 1 Archaea
Ecology	Branch of science studying different organisms interacting with one another and the environment
Ecosystem	Group of organisms living in the same environment and interacting with one another
Evolution	Change of characteristics over time
Natural Selection	When certain organisms can survive in an environment by changing
Adaptations	Changes in an organism that help it survive