The hominid family diversified from the apes around 6 to 8 million years ago. Since then, the evolutionary path has prov..
Plant cells have plastids essential in photosynthesis. They also have an additional layer called cell wall on their cell..
Stems primarily provide plants structural support. This tutorial includes lectures on the external form of a woody twig ..
Gregor Mendel's studies into Monohybrid and Dihybrid crossing and Charles Darwin's study of evolution and natural select..
Following nine months inside the mother's womb is the birth of the baby. Know the different stages of the birthing proce..
This lesson is about the methods used for ecological research, such as quadrat and transect sampling, canopy fogging, an..
