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Life Notes
Characteristics of Life Notes
Term | Definition |
---|---|
an organism is... | any living thing |
what makes a living thing living | cells, reproduction, oxygen, carbon, water, needs to eat (energy), sunlight, breathing. |
cells | -cells are the smallest unit of all life processes. - unicellular/multicellular l l -prokaryote / eukaryote |
reproduction | -make more of own kind -parents or parent cells - biogenesis- life comes from life |
life span/ develop and grow | -birth -growth -maturity -decline -death |
metabolism | -the sum of all chemical reactions in an organism -requires energy -plants get energy from sun -make own food, autotrophs -animals get energy from food eaten - cannot make own food, heterotrops |
homeostasis | -stabailizing internal conditions regardless of external environment -adaptions |
adapt to change/respond to stimuli | -stimulus *scream -response * jump |
pass characteristics on to offspring | heredity- passing on traits from parent to offspring gene- basic unit of heredity mutation- change *helpful *harmful |
adapt and evolve | adaption- short term changes in individuals evolution- long term changes in a species natural selection- (charles darwin)\ *more favorable traits *pass along to offspring *species |
interdependence | - all organisms interact in a community -ecology *organisms "biotic" *environment "abiotic" - food chains/ food webs. |