radioactive decay
(Science: physics) The process by which a spontaneous change in nuclear state takes place. This process is accompanied by the emission of energy in various specific combinations of electromagnetic and corpuscular radiation and neutrinos.
The spontaneous disintegration of a radioactive substance along with the emission of ionizing radiation.
This tutorial recognizes the importance of food as a source of energy that will fuel many biological processes. A good d..
Plants need to regulate water in order to stay upright and structurally stable. Find out the different evolutionary adap..
This tutorial looks at the relationship between organisms. It also explores how energy is passed on in the food chain an..
Geological periods is a study guide that cites the different geological periods on Earth's timeline. Each has a brief ov..
The nucleus containing the genetic material, DNA, and the mitochondria, well-identified as the "powerhouse of the cell",..
Plants are characterized by having alternation of generations in their life cycles. This tutorial is a review of plant m..