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20 Cards in this Set
- Front
- Back
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kingdoms
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organisms
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cellular organization
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living things aare composed of one or more cells....human body contiains 10-100trillion cells
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metabolism
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living things use energy-to get the energy we use it comes from plants or eating animals these organisms transfer energy from one place to another carrying molecules call ATP.
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Homeostasis
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when the body acts to maintain an internal temperature of approximately 37c(98.6f)...organisms act to keep their interior conditions constant.
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Growth and reporduction
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bacteria increase in size and split in two every 15 minutes.
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heredity
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a genetic system based on a long molecule called DNA(deoxyribonucleic acid) its the info. that will determine what an organism will be like...this transmission of characteristics from parents to offspring is called heredity.
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atoms
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fundamental elements of matter ar atoms
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molecules
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atoms joined together into complex clusters
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macromolecules
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large complex molecule, such as DNA that stores hereditary info.
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organelles
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biological molecules assembled into tiny compartments within cells
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cells
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smallest level of organizations that can be considered alive.
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tissues
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most basic level-ex.nerve tissue composed of cells called neurons that carry electrical signals
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organs
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tissues are grouped into organs
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organ systems
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third level-argans are grouped into organ systems
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organism
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organ systems function together to form an organism
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population
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a flock of organisms living together such as geese
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species
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all populations of a particular kind of organisms
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commuity
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higher level of biological organization which consists of all populations of different species living together in one place.ex.geese at a pond
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ecosystem
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hghest tier of biological organization...a biological community and the soil and water within which it lives together.
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emergent properties
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hierarchy of living things, properties occur that were not present at the simpler levels.
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