organization of living things. atom makes up all living and nonliving things
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Organization of Living Things
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Atom Makes up all living and nonliving things
CellBasic unit of living things - 210 cell types
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muscle cell
blood cellMuscle cell
nerve cell
hair cell
stomach cell
TissueMany cells performing a function - blood, muscle, bone
OrganSeveral tissues working together - heart, root, liver, leaves
Organ SystemSeveral organs working together; circulatory system, digestive system, etc.
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IndividualOrgan systems working together!Snakes, maple tree, grasshopper
PopulationA group of individuals (school of fish)
CommunityAll living things in an area
EcosystemAll living and non-living things in an areaPrairie - grasses, hawk, snake, soil, etc.
Planet
Cell Basics
* Theories on formation* Types of cells* Differences in cells
Cell Formation- Which Theory?
A) Spontaneous Generation- the thought that living things can appear from nowhere- not true
All living things are made of cellsAll cells come from other cellsCells are the most basic unit of LIFE
Cell Theory
All Cells: Four Major Parts
• Cytoplasm• Cell Membrane• Genetic Material (DNA)• Ribosomes
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animalcell
Two Types of Cells:
A) Prokaryotic: simple cells with no nucleus(bacteria and archae)
pro = beforekaryo = nucleus
Two Types of Cells:
B) Eukaryotic: Larger cells with more organelles and a nucleus (plants, animals, fungus and protists)
eu = truekaryo = nucleus
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Two Types of Eukaryotic Cells:
Plant Cells: have a cell wall, central vacuole and chloroplasts
Two Types of Eukaryotic cells
Animals Cells: have no cell wall or chloroplasts
Differences in cells
Cells can be different sizes- bacteria v egg
Cells can be different shapes- blood cell versus muscle cell
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