GENERAL HISTOLOGY

OESOPHAGUS STOMACH

ECHINODERMS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The tough layer on the outside of arthropod’s bodies that provide protection and support
A
nauplius
B
exoskeleton
C
skeleton
D
shell
Explanation: 

Detailed explanation-1: -Arthropods are covered with a tough, resilient integument or exoskeleton of chitin . Generally the exoskeleton will have thickened areas in which the chitin is reinforced or stiffened by materials such as minerals or hardened proteins. This happens in parts of the body where there is a need for rigidity or elasticity.

Detailed explanation-2: -Final answer: The body of arthropods is covered by a hard outer covering called exoskeleton.

Detailed explanation-3: -The exoskeleton is the hard outer shell (nonliving layer) of an insect, in contrast with the endoskeleton of humans and other mammals.

Detailed explanation-4: -The exoskeleton is also called the cuticle and is made up of three distinct layers: the epicuticle, exocuticle and endocuticle.

There is 1 question to complete.