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cell -
basic unit of structure and function in an organism
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tissue -
group of similar cells that perform a specific function in an organism
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organ -
group of diffrent tissues that have specific job
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organ system
group of organs that work together to perform specific job
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4 levels of organization from smallest to largest
- 1.cell
- 2.tissue
- 3.organ
- 4.organ system
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cell examples
skin cell, nerve, muscle, white cell
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tissue examples
bone, blood, skin, muscle
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organ example :
intestine (large and small), heart, brain
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organ systems:
skeletal, muscular, circulatory
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4 types of tissue on animal/human
bone,blood,skin,muscle
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epithel
- ex: skin
- def: protects and covers
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muscle
- ex: bicep/triceps/heart
- def: moves parts (or all of you)
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nerve
- ex:brain
- def: carries messages
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CoNNeCTiVe
- ex:ligaments/bone/blood/fat
- def:connects parts and protects parts
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4 organ systems:
respiratory, circulatory. digestive, nervous
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digestive -
breaks down food
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respiratory
takes an O2 and removes CO2
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circualtory
- circulates O2 and nutrients to cells
- removes CO2
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nervous
- messages to and from functions
- move and senses organs
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digestive
intestine/stomach
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respiratory system
- parts - fish has gills.....frog and human have lungs.....
- function - same
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digestive system
- parts - same
- functions - same
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circulatory system
- parts - same (**********fish- 2 chambers, frog- 3 chambers, human- 4 chambers**************)
- function - same ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
- NEED TO KNOW FOR TEST !!! >3 :( ")
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3 things scientists do to classify animals :|
- 1.backbone
- 2. symmetry
- 3. what they eat
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heterotroph
eats other organisms
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wat do scientists consider wen placing newly discovered organisms into kingdoms?????????????????
- type of cell (eukaryok/prokaryote)
- how it gets food (autotroph/heterotroph)
- #of cells, (unicellular/multi.)
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symmetry
the way the body is organized
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bilateral symmetry
one line of symmetry
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radial symmetry
a basic body plan in which the organism can be divided into similar halves by passing a plane at any angle along a central axis
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3 different types of asexual reproduction
spores, binary fission, budding
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wat 2 structures do plant cells have that animal cells dont?
cell wall, chloroplast
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wat 2 things are needed for photosynthesis in plant cells ?
CO2 + H2O
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wat is the function of the vascular system in plants?
to carry food nd water :)
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why do cells undergo mitosis ?
- - repair, grow
- - reproduce
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osmosis
diffusion in water
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in wat di-rection will molecules move on osmosis?
to area of least concentration
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what levels of organization does osmosis have
cell
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wat steps do scientists take in classifying new organisms into kingdoms?
- same as -
- no of cells
- type of cells - how get four
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