Question

How do crustaceans protect and support themselves?

Answer 1

Hint: Crustaceans are an assorted gathering of generally aquatic creatures discovered everywhere on the globe, from shallow oceans, to tide pools, to the deep profundities of the profound seas. Crustaceans, for example, crabs and shrimp, are generally low on the evolved way of life and are frequently gone after by fish, ocean warm blooded animals, mollusks (counting octopi), and people. Therefore, scavengers have built up a few different ways to shield themselves from likely predators.

Complete answer:
The principal crustacean assurance stays in their exoskeleton.
Contingent upon their lifestyle ( bentique or pelagique, aquatique or terrestrial) their covering support them.The exocuticle of scavenger in extremely thick, made of chitin and calcium carbonate, it is definitely more safe and weighty than the overall creepy crawlies exoskeleton. This contrasts between the heaviness of the exoskeleton may be one of the clarifications of why most crustaceans stay in oceanic habitats where their weight is simpler to help and why bugs successfully colonized earth.
The enormous assortment of crustacean covering which let them exploit a huge assortment of living spaces : walking leg to slither on the benthos ( crabs , lobster etc.) or appendix to swim ( ex: mysidacea and numerous others).
The exoskeleton is travelled through muscle connected to within the exoskeleton to flex their appendages which award them with amazing strength.

Note: Crustaceans have hard shells, which typically go about as security. They are generally all around covered against predators, however will utilize hollows under rocks, or the unfilled shells of dead shellfish, or cover themselves in mud as security. Crawfish likewise conceal themselves when they are shedding their old shells, and when the new shells are still delicate.