The human respiratory system is an efficient system of inspiring and expiring respiratory gases. This tutorial provides ..
This lesson is about the methods used for ecological research, such as quadrat and transect sampling, canopy fogging, an..
It only takes one biological cell to create an organism. A single cell is able to keep itself functional through its 'mi..
According to Charles Darwin's theory of natural selection, preferable genes are favored by nature in the gene pool, and ..
In plants, growth occurs in meristems, which are the site of repeated cell division of unspecialized cells. These cells ..
Seed plants are vascular plants. They differ from the other vascular plants in producing seeds that germinate into a new..