piles (Science: medicine) The small, troublesome tumours or swellings about the anus and lower part of the rectum which are technically called haemorrhoids. Origin: The singular pile is sometimes used. Blind piles, haemorrhoids which do not bleed. Origin: L. Pila a ball. Cf. Pill a medicine...
This tutorial looks at sex determination via the sex chromosomes, X and Y. Read it to get more info on X and Y chromosom..
Adaptation, in biology and ecology, refers to the process or trait through which organisms or the populations in a habit..
This tutorial elaborates on the effect of light on plant growth. It describes how different plants require different amo..
The hominid family diversified from the apes around 6 to 8 million years ago. Since then, the evolutionary path has prov..
Plants are responsible for incredible feats of molecular transformation. Plant processes, such as photosynthesis, photop..
Leaves are the major photosynthetic organ of a plant. Apart from that, they are also crucial to water movement. In this ..
