AP Biology What is Biology? How do we study it? What is Biology? How do we study it?
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Transcript of AP Biology What is Biology? How do we study it? What is Biology? How do we study it?
What is living and what is not?
•Organisms regulate their metabolic processes
•Movement is a basic property of cells
What is living and what is not?
•Organisms respond to stimuli
•Organisms reproduce
•Populations evolve and become adapted to the environment
Levels of Organization
Chemical level- atoms and molecules
Cellular level- prokaryotic and eukaryotic
Levels of Organization
Organ Systems- organization of organs
Organism- organization of organ systems
Systematics- studies the diversity of organisms and their evolutionary relationships
Taxonomy- the science of naming and classifying organisms
Taxonomy is hierarchical
Kingdoms are broken down into phyla, class, orders, families, genera, and species
Two domains are dedicated to prokaryotes (organisms whose cells lack nuclei and other membrane-bound organelles)
Archaea
Eubacteria
One domain is dedicated to eukaryotes (organisms whose cells have nuclei and other membrane-bound organelles)
Eukarya
Animalia- animals, of course!
For many, evolution is the primary unifying concept in the study of biology.
Species adapt in response to changes in the environment.
Natural selection is an important mechanism by which evolution proceeds
DarwinWallace
Science is based on systematic thought processes
Science includes both deductive and inductive reasoning
Used in medical studies. Neither the patient nor the physician know who is getting the experimental treatment– use to prevent bias.
Energy flows through individual cells and organisms
Cellular respiration produces energy for most cells