COURSE I – FIRST SEMESTERPHYLUM ARTHROPODA Animals with jointed legs Compound eyes Chitinous exoskeleton Prof. S D Rathod
Arthropods Arthropoda is the largest group of the animal kingdom Bilaterally symmetrical, triploblastic and metamerically segmented Sexes are usually separate with sexual dimorphism Metamorphosis
Class – Crustacea (animals with crusta) They have five pairs of walking legs Cephalothorax with crusta or carapace Stalked compound eyes antennules and antennae are present Example - Spiny Lobster
Class – Myriapoda Body divisible into head and trunk Mostly terrestrial; They have many pairs of walking legs. Each leg is seven jointed Head has a pair of antennae and compound eyes Example - Centipede
Scorpion Scientists in the US have claimed that scorpion venom may help in the treatment of a wide range of cancers. The Amazonian scorpion the most venomous of all the scorpions in the world and needs medical aid otherwise the person stung would sweat profusely and there would spasmodic movement of the body. In such an even an antidote is required.
Ticks Tick Facts Ticks are blood-eating parasites that live and feed on mammals, birds and reptiles around the world.
Mites Dust mites do not feed on blood but the dead skin cells and the in the dust. Some live creating burrows in our skin causing scabies.