A Part of the Ocean where sunlight can Penetrate and where most Ocean Organisms Dwell
Dictionary > Photic Zone
You will also like...
Control of Body Movement
Some of the body movements can be controlled at will, others cannot. The body has a motor program, which is the pattern ..
The Dinosaurs
Dinosaurs represented a major turn in the evolutionary development of organisms on Earth. The first dinosaurs were presu..
Still Water Animals
Animals living in aquatic habitats have diversified and evolved through time. They eventually occupy ecological niches a..
The Hominids
The hominid family diversified from the apes around 6 to 8 million years ago. Since then, the evolutionary path has prov..
Physical Development in Humans
This tutorial elaborates on the physical development of humans, particularly from puberty to adulthood. Read this tutori..
Plant Meristems and Growth
In plants, growth occurs in meristems, which are the site of repeated cell division of unspecialized cells. These cells ..