BEHAVIORAL SCIENCE
Ethology is the science of the study of animal behaviour. This is a comparatively new science developed during the last century. It deals with the response of animals to various stimuli and factors operating in the environment.
The following chapters are included in this section:
THE CHORDATES
Chordates are characterised by a rod-like notochord and a hollow nerve cord on the dorsal side of the gut, and pharynx being perforated with gill slits for respiration. Vertebrates have a vertebral column that replaces the notochord, cephalization of the nervous system, a ventral heart, a post-anal tail and division of the coelom into chambers.
The following chapters appear in this section. Click on the title to open.
