Plant organs are comprised of tissues working together for a common function. The different types of plant tissues are m..
Gregor Mendel's studies into Monohybrid and Dihybrid crossing and Charles Darwin's study of evolution and natural select..
A typical eukaryotic cell is comprised of cytoplasm with different organelles, such as nucleus, endoplasmic reticulum, G..
Earth was created around 4.5 billion years ago and life began not long after. Primitive life likely possessed the elemen..
This tutorial recognizes the importance of food as a source of energy that will fuel many biological processes. A good d..
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