Sunday, November 9, 2008

Essential life functions

Transport: refers to processes which cause heat Energy, or particles, or something else, to flow out of the plasma and cease being confined. Diffusion partly determines the rate of transport. Energy losses from a plasma due to transport processes are a central problem in fusion energy research.
Excretion:
something excreted;esp:useless,superfluous,or harmful material(as urea)that is eliminated from the body and that differs from a secretion in not being produced to perform a useful function.
Regulation: how organisms control body processes- hormones, nervous system
Respiration: Respiration can occur with or without oxygen, aerobic ( with oxygen) and anaerobic ( without oxygen) respiration respectively.
Nutrition: how oranisms break down and absorb foods.
Synthesis: how organisms build neccessary molecules.
Reproduction: Sexual versus asexual, eggs, seeds, spores, placental, types of fertilization
Growth and Developement: metamorphosis, developement in egg or in uterus, growth from seed or spore.

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