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13 terms

life

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Organization
orderly structure of cells in an organism; a characteristic of all living things
cellular composition
The characteristic of life that states that living matter is always compartmentalized into one or more cells.
metabolism
the combination of chemical reactions through which an organism builds up or breaks down materials as it carries out its life processes
anabolism
The process of bulidng complex structures out of simpler precursors, e.g. synthesizing protiens from amino acids.
catabolism
Process of breaking down complex materials (foods) to form simpler substances and release energy
excretion
Required for metabolism ;elimination of wastes from the body (urine, carbon dioxide, sweat)
stimuli
a change in an organism's environment that affects the activity of the organism(Ex:Lights,sounds,taste,chemical, gravity,or darkness)
homeostasis
a tendency to maintain a balanced or constant internal state; the regulation of any aspect of body chemistry, such as blood glucose, around a particular level
development
all of the changes that take place during the life of an organism; a characteristic of all living things.
differentiation
the process in which the structure and function of the parts of an organism change to enable specialization of those parts
evolution
generation-to-generation change in the proportion of different inherited genes in a population that account for all of the changes that have transformed life over an immense time
mutations
change in a DNA sequence that affects genetic information
legally dead
No brain waves for 24 hours, no reflexes, no respiration, no heartbeat without life support