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21 Cards in this Set
- Front
- Back
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biology
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the study of life
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organization
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the high degree of order within an organisms internal and external parts and in its interactions with the living world
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cell
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the smallest unit that can perform all life processes, cells are covered by a membrane and contain dna and cytoplasm
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unicellular
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describes an organism that consists of a single cell
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multicellular
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describes a tissue, an organ or organism that is madeof many cells
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organ
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structures that carry out specialized jobs within an organ system
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tissues
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groups of cells that have similar abilities anda tha allow the oragan to function
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organelle
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tiny structures that carry out functions necessary fot eh cell to stay alive
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biological molecules
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the chemical compounds that provide physical structure and that bring about movement, energy use and other cellular function
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homeostasis
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is the maintenance of a stable level of internal conditions ecen though environmental conditions are constantly changing
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metabolism
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the sum of all the chemical reactions that take in and transform energyand materials from the environment
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cell division
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is the formation of two new cells from an existing cell
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development
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the process by which an organism becomes a mature adult
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reproduction
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to reproduce new organisms like ones self
not essential to survival of an individual organism, however is essential to the species |
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characteristics of life
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1. oranization and cells
2. Response to stimuli 3.homeostasis 4. metabolism 5. growth and development 6. reproduction 7. change through time |
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DNA
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Large library
hereditary information is encoded in molecules deoxyribonucleic acid |
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gene
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the short segment of dna that contains instructions for a single trait
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sexual reproduction
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hereditary information recomines from two orfanisms of the same species
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asexual reproduction
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hereditary info from differnt orfanisms is not combined- original and new are genetically the same
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cell
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small rooms
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baby chess
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second best dog
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