Question

The phylum Arthropoda includes four major lineages: 1. cheliceriforms (also called chelicerates)2. myriapods3. insects and their relatives (together called hexapods) 4. crustaceansDrag each word or phrase to the appropriate bin.

Answer 1

Answer:

Phylum Arthropod is the largest phylum which contain about 5-8 million animal species which are occupying 80% of the total living  animal species.

The main 5 sub phylum of arthropods are Trilobites,Chelicerates,Myriapods, Crustaceans,Hexapods.

Explanation:

Chelicerates-

This group of arthropod includes spider,mites,horse shoe crab,tick etc

The main characteristics of this group are presence of 6 pairs of appendages where 4 pairs are used for walking and two pairs are used as mouth parts.They lack mandible and antennae.

Myriapods-

Centipedes and millipedes are including this group which are quite similar with the worm like creature.

They have round body with 2 pairs of legs on both the body segments and make burrow in the soil. They contain more than 20 legs, 1 pair of antennae,presence of tough exoskeleton which protects them from environmental hazards.

Hexapods-

The name is given as they contain 3 pairs of legs and body is divided into head, thorax and abdomen.They bear 1 pair of antennae and mandible as a mouth organ.The abdomen is 11 segmented and bear have reproductive organs.They may be with wing or without wings.

Crustaceans-

This group includes crabs,lobsters, crayfish etc are mainly free living or terrestrial,parasitic or sessile forms which contain 3 regions the head, thorax and abdomen which is covered by carapace and is protected by exoskeleton.