organic phenomenon

the organic phenomenon in which one of a pair of alleles present in a genotype is expressed in the phenotype and the other allele of the pair is not

a hypothetical organic phenomenon by which living organisms are created from nonliving matter

the alternation of two or more different forms in the life cycle of a plant or animal

an annual formation of wood in plants as they grow

electric phenomena in animals or plants

movement through a circuit; especially the movement of blood through the heart and blood vessels

the circulation of cytoplasm within a cell

the permanent end of all life functions in an organism or part of an organism

the organic phenomenon of rotting

(biology) release of material by splitting open of an organ or tissue; the natural bursting open at maturity of a fruit or other reproductive body to release seeds or spores or the bursting open of a surgically closed wound

loss of bits of outer skin by peeling or shedding or coming off in scales

the peeling off in flakes or scales of bark or dead skin

passage of blood cells (especially white blood cells) through intact capillary walls and into the surrounding tissue

(neurophysiology) phenomenon that occurs when two or more neural impulses that alone are not enough to trigger a response in a neuron combine to trigger an action potential

(ecology) a community of organisms where each member is eaten in turn by another member

(ecology) a hierarchy of food chains with the principal predator at the top; each level preys on the level below

(ecology) a community of organisms where there are several interrelated food chains

conversion of the information encoded in a gene first into messenger RNA and then to a protein

condition in which the cells of one tissue can survive in the presence of cells of another tissue

the organic phenomenon that distinguishes living organisms from nonliving ones

a series of stages through which an organism passes between recurrences of a primary stage

(biology) the appearance of two or more distinctly different forms in the life cycle of some organisms

(biology) the existence of two or more forms of individuals within the same animal species (independent of sex differences)

(genetics) the genetic variation within a population that natural selection can operate on

(biology) the ability of one molecule to attach to another molecule that has a complementary shape

(medicine) an immunological response that refuses to accept substances or organisms that are recognized as foreign

the phenomenon of vitality and freshness being restored

an association between genes in sex chromosomes that makes some characteristics appear more frequently in one sex than in the other

alternation of sexual and asexual generations

(neurophysiology) rapid fluctuations of voltage between parts of the cerebral cortex that are detectable with an electroencephalograph

circulation that supplies blood to all the body except to the lungs

circulation of blood between the heart and the lungs

circulation of blood between the embryo and the yolk sac

characteristic life processes and phenomena of living organisms

life sustained in the presence of air or oxygen

(physiology) the normal degeneration and death of living cells (as in various epithelial cells)

the localized death of living cells (as from infection or the interruption of blood supply)

death when respiration and other reflexes are absent; consciousness is gone; organs can be removed for transplantation before the heartbeat stops

(biology) the existence of two forms of individual within the same animal species (independent of sex differences)

(genetics) genetic variation in a DNA sequence that occurs when a single nucleotide in a genome is altered; SNPs are usually considered to be point mutations that have been evolutionarily successful enough to recur in a significant proportion of the population of a species