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31 Cards in this Set
- Front
- Back
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Cell Theory
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All living organisms are composed of cells. They may be unicellular or multicellular
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The cell is what?
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The basic unit of life
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Where do cells come from?
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Pre existing cells
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Ecosystem
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involve interactions between communities and their enviroment. Communities consist if different populations (groups of organism of the same species) in a given geographic area. The enviroment includes everything from people to plants
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Organism
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An individual animal, plant. or single celled life form
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Organ Systems
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Systems which work together to kee[ the body functioning normally
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Organs
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collections of tissues join in structural unit to serve a common function
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tissues
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group of cells that do the same thing
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cells
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basic structurial unit of all organisms
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Skeletal Systems major role
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To provide support, protect, and to provide attatchment points for the body
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Skeletal System major organs
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Bones, cartilage, tendons, and ligaments
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Muscular System major role
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to provide movement of limbs and materials
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Muscular System Major Organs
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skeletal muscles and smooth muscles
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Circulatory System major role
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The main role is to transport nutrients through the body
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Circulatory System Major organs
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heart, blood vessels, and blood
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Nervous System major role
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to relay electrical signnal through the body
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nervous system major organs
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brain, spinal, and peripheral nerves
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Respiratory System Major Role
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To provide gas exhange between the blood and enviroment
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Respitory System major organs
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nose trachea and lungs
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Digestive System Major Role
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breakdown and absorb nutrients for growth and maintenance
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digestive system major organs
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mouth, eesophagus, stomach, and small and large intestines
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Dna
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the blueprint of life that instructs cells on how to devolop and function
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Gene
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Sequence of Dna that determines a particular trait
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Allele
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another name for gene
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Dominant gene/allele
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more common gene that over powers recessive genes and shows up more often in people
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recessive gene/allele
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weaker, less common gene/allele in a given pair
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offspring
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result of a cross of two parents
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Gametes
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Reproductive cells that contain one half of an individuals Dna
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Heredity
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the passage of genetics instructions from one generation to the next
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Asexeual Reproduction
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an exact copy of the parent is passed to the offspring
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Sexual Reproduction
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ability to produce variable offspring who have better chances of surviving in changing enviroments
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