Why amphibians are without exoskeleton?

Amphibians do not have exoskeleton. Give reason.

Amphibians do not have exoskeleton. Give reason.

Chitinous plates making the exoskeleton in arthropods are called

Mention one example each for animals with chitinous exoskeleton and those covered by a calcareous shell.

Why are amphibians and reptiles called poikilothermic?

What is the substance present in the exoskeleton of Arthropods?

Classification-based questions: identify me: I have chitinous exoskeleton, I have four pairs of walking appendages. I can sting you. Who am I ? What phylum do I belong to ?

How do plants reproduce without seeds ?

Why are amphibians and reptilians called poikilotherms.

Chitin is a polysaccharide found in the exoskeleton of