Category: Y

Young-Helmholtz Trichromatic (three color) Theory This is a theory of colour and how humans perceive colour. According to this theory, the human…

Yerkes-Dodson Law of Arousal This law states that an organism’s performance can be improved if that organism is aroused in some manner.…

Y Chromosome The 23rd pair of chromosomes are the sex chromosomes. There are two types of sex chromosomes, an X and a…