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Crabs are exoskeletal - their hard skin forms the skeleton on the outside - and it is made of a tough protein (chitin). Birds are endoskeletal, an internal skeleton with a backbone (vertebral column), the bones having a significant inorganic component, carbonated hydroxyapatite containing calcium and some phosphorus.
What else can I help you with?
What is a crab crab's shell for?
Crabs have no inner skeleton like humans do so the shell is its skeleton but on the outside of its body. The shell protects the crab from injury.
Which of these have an internal skeleton crab man cow and turkey?
All but the crab do.
Do a crab have a skeleton?
no they do not have an internal skeleton in order to grow they switch their shells
How are a human skeleton and the shell of a crab alike?
A Human skeleton,and a crab shell are alike because,the bones inside the human body are strong like the crab shell on the outside of the body
How are the skeleton and the shell of a crab alike?
The skeleton and shell of a crab are synonymous. What we'd call the shell of a crab is simply a component of its exoskeleton, the external covering arthropods use made out of a tough protein, chitin.
What type of skeleton does a crab have and how does it help the crab?
An Exoskeleton - external skeleton. Stops it getting omnomed
Does a blue crab have a skeleton?
no they do not have an internal skeleton in order to grow they switch their shells
Which of these have an inside skeleton crab man cow turkey?
Man and cow. p.s I had it as a question in a science quiz for homework.
What depends on a crab?
A bird
What is the primary function of both the external skeleton of a crab and the internal skeleton of a seagull?
They providestrength and support for the body.
Does a crab have an external or external skeleton?
A crab has an external hard shell, and is an invertebrate.
What are some differences between crabs and fish?
an octopus has a squishy outer layer and a crab has a hard shell to protect it. the crab has claws to catch its food and an octopus has suckers to latch on to its prey. an octopus can also squeeze into really small spaces because it can move its skin and shrinks down to size. that is the difference between a crab and an octopus.
