You searched for youth - Biology Articles, Tutorials & Dictionary Online

The demographic transition model is a theoretical framework that explains the historical shift in population dynamics as a... Read More

Substance Definition What is a substance? The word substance finds varied usages in different science fields. In general... Read More

Air 1. The Fluid which we Breathe, and which surrounds the earth; the Atmosphere. It is Invisible, inodourous, Insipid,... Read More

Definition Of Organ An organ is a collection of tissues that carries out a function or set of related ones. An organ often... Read More

Dew 1. Moisture from the atmosphere condensed by cool bodies upon their surfaces, particularly at night. Her tears fell with... Read More

Dexterity 1. Right-handedness. 2. Readiness and grace in physical activity; skill and ease in using the hands; expertness in... Read More

Breed 1. A race or variety of men or other animals (or of plants), perpetuating its special or distinctive characteristics... Read More

pupil 1. A youth or scholar of either sex under the care of an instructor or tutor. Too far in years to be a pupil now.... Read More

scar To mark with a scar or scars. Yet I'll not shed her blood; Nor scar that whiter skin of hers than snow. (Shak) His... Read More

Hyacinth 1. (Science: botany) a bulbous plant of the genus Hyacinthus, bearing beautiful spikes of fragrant flowers. H.... Read More

wrinkle 1. A small ridge, prominence, or furrow formed by the shrinking or contraction of any smooth substance; a... Read More

Polygenic Trait Definition Polygenic trait refers to a trait that is controlled by multiple non-allelic genes. These genes... Read More

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