It only takes one biological cell to create an organism. A single cell is able to keep itself functional through its 'mi..
Planktons are microscopic organisms that live suspended in aquatic habitats. There are two groups: the phytoplanktons an..
Multicellular organisms evolved. The first ones were likely in the form of sponges. Multicellularity led to the evolutio..
Hormones are essential in the regulation of the activity of the various biological systems of the human body. The ineffi..
Upon fertilization, a zygote forms and develops into an embryo. This tutorial elaborates on the growth and development f..
Plants produce hormones to regulate their growth. Auxins, for instance, influence plant growth. Know the role of auxin i..