Humans are diploid creatures. This means that for every chromosome in the body, there is another one to match it. Howeve..
There are more species of insects than any other species combined. This surely illustrates that insects have the selecti..
The nervous system is essentially a biological information highway. This tutorial gives an overview of the nervous syste..
Organisms employ different strategies to boost its defenses against antigens. Humans have an immune system to combat pat..
A typical eukaryotic cell is comprised of cytoplasm with different organelles, such as nucleus, endoplasmic reticulum, G..
The water cycle (also referred to as the hydrological cycle) is a system of continuous transfer of water from the air, s..
