A technique of growing plants (without soil) in water containing dissolved nutrients.A science where plants are nurtured without being planted in soil. Plants roots are suspended in water where the chemical nutrients required by the plant are dissolved within this water, where the ability to alter concentrations of these substances allow.
The human respiratory system is an efficient system of inspiring and expiring respiratory gases. This tutorial provides ..
Geological periods is a study guide that cites the different geological periods on Earth's timeline. Each has a brief ov..
Multicellular organisms evolved. The first ones were likely in the form of sponges. Multicellularity led to the evolutio..
Control of Growth & Development tutorials look at how the genetic makeup determines the biological processes on a da..
Some of the body movements can be controlled at will, others cannot. The body has a motor program, which is the pattern ..
There are many environmental factors that arise due to the usage of water in one way or another and for every action tha..