tic
(Science: clinical sign) An involuntary compulsive, repetitive, stereotyped movement, resembling a purposeful movement because it is coordinated and involves muscles in their normal synergistic relationships, tics usually involve the face and shoulders.
Plants protect themselves by releasing hydrogen peroxide to fight against fungal invasion. Another way is by secreting c..
Dinosaurs represented a major turn in the evolutionary development of organisms on Earth. The first dinosaurs were presu..
Following nine months inside the mother's womb is the birth of the baby. Know the different stages of the birthing proce..
Homeostasis is the relatively stable conditions of the internal environment that result from compensatory regulatory res..
Stems primarily provide plants structural support. This tutorial includes lectures on the external form of a woody twig ..
The endoplasmic reticulum and Golgi apparatus are the organelles involved in the translation step of protein synthesis a..