Plants need to regulate water in order to stay upright and structurally stable. Find out the different evolutionary adap..
This tutorial looks at the adaptations of freshwater plants for them to thrive in still water habitats. Familiarize your..
Mammals are a diverse group of organisms, where most of them develop their offspring within the uterus of the mother. Ov..
This tutorial describes the independent assortment of chromosomes and crossing over as important events in meiosis. Read..
The sea was teeming with life. Eventually, through reproduction and continued variation, fish came about. There are over..
This tutorial looks at the relationship between organisms. It also explores how energy is passed on in the food chain an..
