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Crabs are generally covered with a thick exoskeleton, composed primarily of ____________ .

Crab2.jpg
Carbon
Sodium Chloride
calcium carbonate
Silica


Crabs are generally covered with a thick exoskeleton, composed primarily of calcium carbonate, Crabs vary in size from the pea crab, a few millimeters wide, to the Japanese spider crab, with a leg span of up to 4 meters (13 ft).

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What is the phylum of crabs ?

Crab3.jpg
Manga
Tenia
Homosepian



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How many eyes does a Horseshoe crab has ?

16
60
6
8


A horseshoe crab is an animal that lives in salt water. It is covered in spikes and has 6 eyes.

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What is the color of Horseshoe crab ?

Red
Black
Blue
White


Horseshoe crab blood is blue because it has copper in it instead of iron like human blood.

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Crabs have blue blood because of__________.

Lithium
Hemocyanin
Hemoglobin
Sodium


Unlike humans crabs have Hemocyanin instead of hemoglobin. Hemocyanin has copper in it which makes the blood blue.

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Crabs are ______ eaters.

Fish
Beats
Carrion
None of abobe


Crabs are ''carrion eaters'', meaning they feast on what''s left after a larger predator has its fill.

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How many legs does a yellow crab spider have ?

10
2
5
8


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What is the suborder of crabs ?

Destra
Bendict
Pleocyemata
Sulphur


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Crabs are

Omnivore
Carnivore
Herbivore
None of abobe


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What is the group name of Crabs ?

Cylon
Cast
Hob
Gets


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