Life extension — refers to an increase in maximum or average lifespan, especially in humans, by slowing down or reversing the processes of aging. Average lifespan is determined by vulnerability to accidents and age related afflictions such as cancer or… … Wikipedia
Life extension — Restoration or refurbishment of a plant to its original performance without the installation of new combustion technologies. Life extension results in 10 to 20 years of plant life beyond the anticipated retirement date, but usually does not… … Energy terms
Plant senescence — is the study of aging in plants. It is a heavily studied subject just as it is in the other kingdoms of life. Plants, just like other forms of organisms seem to have both unintended and programmed aging. Leaf senescence is the cause of autumn… … Wikipedia
Life Sciences — ▪ 2009 Introduction Zoology In 2008 several zoological studies provided new insights into how species life history traits (such as the timing of reproduction or the length of life of adult individuals) are derived in part as responses to… … Universalium
plant — plantable, adj. plantless, adj. plantlike, adj. /plant, plahnt/, n. 1. any member of the kingdom Plantae, comprising multicellular organisms that typically produce their own food from inorganic matter by the process of photosynthesis and that… … Universalium
Life expectancy — This article is about the measure of remaining life. For the Dean Koontz novel, see Life Expectancy (novel). For List of countries by life expectancy, see List of countries by life expectancy. Life expectancy is the expected (in the statistical… … Wikipedia
Life — • The enigma of life is still one of the two or three most difficult problems that face both scientist and philosopher Catholic Encyclopedia. Kevin Knight. 2006. Life Life … Catholic encyclopedia
Plant hormone — Plant hormones (also known as phytohormones) are chemicals that regulate plant growth. Plant hormones are signal molecules produced within the plant, and occur in extremely low concentrations. Hormones regulate cellular processes in targeted… … Wikipedia
Plant breeding — is the art and science of changing the genetics of plants in order to produce desired characteristics.[1] Plant breeding can be accomplished through many different techniques ranging from simply selecting plants with desirable characteristics for … Wikipedia
plant development — Introduction a multiphasic process in which two distinct forms succeed each other in alternating generations. One form, created by the union of sexual cells (gametes (gamete)), contains two sets of similar chromosomes (diploid). At sexual… … Universalium
Plant defense against herbivory — Poison ivy produces urushiol to protect the plant from herbivores. In humans this chemical produces an allergic skin rash, known as urushiol induced contact dermatitis … Wikipedia