Question

define classes of arthropods​

Answer 1

Answer:

There are four classes of arthropods

1. chelicerata

2. crustacea

3. tracheata

4. trilobites

Explanation:

CHELICERATA includes spiders and scorpions

CRUSTACEA includes shrimps , lobsters and crabs.

TRACHEATA includes insects and myriapods

TRILOBITES are very extinct.

Answer 2

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$\orange\bigstar$Arthropod :-

• This is largest phylum, have approximately 9 lakh species, 75000 species lies in class Insecta and make it the largest class.

• Organism posses well developed diffrent body system.

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$\purple\bigstar$Features of this group :-

• They can be found in all types of habit - land, water and soil.

• They have joint limbs.

• The body is segmented into three regions - Head, thorax, and abdomenon.

• The exoskeleton is hardest and is made up of chitin.

• They have well developed central nervous system.

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