Transcript BIOLOGY - Bishop Ireton High School

BIOLOGY
UNIT 1
CHARACTERISTICS
OF
LIVING THINGS
ORGANIZATION
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All living things have 1 or more cells.
More complex organisms group their cells to
increase the level of function.
Cells Tissue
Organism
Organ
Systems
REPRODUCTION
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2 types: Asexual(Bacteria) and Sexual (Plants)
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Need to produce fertile offspring
Prevent extinction
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GROWTH and DEVELOPMENT
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Increase amount of material
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Differentiation-specialized cells and
organs
Metamorphosis (butterfly)
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Obtain and Use Energy
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Obtain energy from environment
Anabolism: synthesis (uses energy)
Catabolism: break down (produces energy)
Metabolism= Anabolism +Catabolism-sum
total of energy production and usage
What is the “Energy “ we keep referring to?
ATP
Response to Environment
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STIMULUS- anything that causes organism to
react
Response- response to stimulus
HOMEOSTASIS- regulation of an organism’s
internal environment that is suitable to survival
(ex. Sweating vs. shivering)