Wood units A simplified measurement of pulmonary vascular resistance that uses pressures instead of more complicated units measured by subtracting pulmonary capillary wedge pressure from the mean pulmonary arterial pressure and dividing by cardiac output in liters per minute...
Plant cells have plastids essential in photosynthesis. They also have an additional layer called cell wall on their cell..
This tutorial deals with the abiotic factors of the freshwater environment that determine what sort of life would be sui..
Animals living in aquatic habitats have diversified and evolved through time. They eventually occupy ecological niches a..
Hormones are chemical messengers produced by specialized glands and they were produced by switching on the genes designe..
This tutorial describes the independent assortment of chromosomes and crossing over as important events in meiosis. Read..
Gregor Mendel's studies into Monohybrid and Dihybrid crossing and Charles Darwin's study of evolution and natural select..
