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26 Cards in this Set
- Front
- Back
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Characteristics of living things |
RESPOND to their environment Are ORGANIZED GROW and DEVELOP Use ENERGY REPRODUCE |
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All living things need: |
Raw materials A place to live [habitat] |
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Living things are organized |
They all make it to at least the cellular level of organization |
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Living things respond to their environment |
(homeostasis) things need to be balanced to remain healthy |
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Living things use energy |
(metabolism) eating, digestion, and elimination of waste. cellular respiration=making energy |
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Living things grow and develop |
growth=to change in size development=change in shape/appearance |
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Living things reproduce |
the ability of an organism to produce viable offspring ensures the survival of the species by passing on genetic info (DNA) to young |
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Level one |
Atom Example: hydrogen |
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Atom |
Basic unit of a chemical element |
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Level two |
Molecule Example: water |
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Molecule |
A group of bonded atoms |
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Level three |
Macromolecule Example: nucleic acids (DNA & RNA) |
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Macromolecule |
A molecule containing a very large number of atoms |
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Level four |
Organelle Example: mitochondria |
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Organelle |
Specialized stuctures found in eukaryotic cells |
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Level five |
Cell Example: neuron (nerve) |
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Cell |
Basic unit of life |
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Level six |
Tissue Example: nervous (message) |
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Tissue |
A group of cells that carry out the same function |
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Level seven |
Organs Example: brain |
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Organs |
A group of tissues that work together to perform a function |
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Level eight |
Organ system |
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Organ system |
A group of organs that carry out a specific function |
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The 11 organ systems in the human body |
1)Endocrine 2)Skeletal 3)Excretory/Urinary 4)Digestive 5)Lymphatic/Immune 6)Reproductive 7)Integumentary 8)Circulatory/Cardiovascular 9)Muscular 10)Nervous 11)Respiratory |
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Level nine |
Organism |
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Organism |
A complete living thing |
