depression

Trematode

trematode s See flukes. trench A narrow, deep depression in the sea floor. trench deep area in the ocean floor, generally deeper than 6,000 m ... Full article >>> trematode any parasitic flatworm of the class Trematoda, including the flukes. Full article >>> In 1851, durin...

Outbreeding

outbreeding depression A reduction in the fitness of offspring resulting from mating s among individuals from different population s or demes, possibly caused by the breaking up of coadapted gene complexes. Full article >>> For example, including t...

Oral groove

oral groove A depression leading to the mouth in some invertebrates . organ any multicellular structural or functional unit of an animal of plant , often composed of different tissue s that perform specific roles, such as the liver and leaf . Full article >...

Inbreeding depression

Inbreeding depression A loss of vigour or yield due to inbreeding . Re...g ... Full article >>> inbreeding depression In a small population , an accumulation of harmful genetic trait s (through random mutation s an...

Inbreeding

...ty . Full article >>> Inbreeding depression A loss of vigour or yield due to inbreeding . Re... ... Full article >>> inbreeding depression In a small population , an accumulation of harmful genetic trait s (through random mutation s an...

Consanguinity

...s (called consanguinity depression, inbreeding depression ); however, livestock breed ers often practice inbreeding , then cull unfit offspring , ... Full article >>> When a population consists of an insufficient number of individuals, the species is threatened with extinction , eithe...