Trimester Definition and Examples - Biology Online Dictionary

trimester A period of 3 months; one-third of the length of a pregnancy. Origin: L. Trimestris, of three-month duration..

This tutorial introduces flowing water communities, which bring new and dithering factors into the equation for possible..

This tutorial investigates the genetic diversity in more detail. It also delineates how certain alleles are favored over..

This tutorial presents Gregor Mendel's law of dominance. Learn more about this form of inheritance and how it can be pre..

A still body of water may be disturbed by a variety of factors. One of them is wind. In fact, it is considered as the pr..

Darwin's Finches are an example of natural selection in action. They are an excellent example of the way species' gene p..

The cell is defined as the fundamental, functional unit of life. Some organisms are comprised of only one cell whereas o..

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