proboscis

Phylum: Chordata, its classification and characteristics

by

The characteristics of this phylum are as follows: Presence of notochord Presence of dorsal hollow (tubular) nerve cord. Presence of pharyngeal gill slits. Post anal tail is present. Image source: kullabs This phylum is classified into four sub-phylum. They are as follows: Sub- phylum 1: Hemichordata Marine animals. Simple worm-like soft bodied animal. Remain buried … Read more

Differences between Culex and Anopheles mosquitoes

by

     Phase                  Culex                    Anopheles                   Eggs 1. vertically laid in clusters on the surface of water. 1. laid singly and horizontally on the surface of water. 2. cigar shaped. 2. boat shaped (spindle shaped). 3. not provided with lateral air floats. 3. two lateral air floats are present. 4. laid … Read more