This tutorial looks at the adaptations of freshwater plants for them to thrive in still water habitats. Familiarize your..
Planktons are microscopic organisms that live suspended in aquatic habitats. There are two groups: the phytoplanktons an..
The blood sugar level is regulated by two hormones. The mechanism behind this type of negative feedback control is descr..
If the balance of nature is left untouched, landscapes can change dramatically over time. A previous ecosystem is supers..
Plants protect themselves by releasing hydrogen peroxide to fight against fungal invasion. Another way is by secreting c..
The circulatory system is key to the transport of vital biomolecules and nutrients throughout the body. Learn about the ..
