Leaves are the major photosynthetic organ of a plant. Apart from that, they are also crucial to water movement. In this ..
The sea was teeming with life. Eventually, through reproduction and continued variation, fish came about. There are over..
There are many environmental factors that arise due to the usage of water in one way or another and for every action tha..
The evolution of the species of the genus "Homo" led to the emergence of modern humans. Find out more about human evolut..
Upon fertilization, a zygote forms and develops into an embryo. This tutorial elaborates on the growth and development f..
Bryophytes (nonvascular plants) are a plant group characterized by lacking vascular tissues. They include the mosses, th..
