SCIENCE
ZOOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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crustaceans classified in phylum echinodermata
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chelicerates in class arachnida
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vertebrates in class crustacea
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invertebrates in class uniramia
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Detailed explanation-1: -Arachnida (/əˈræknɪdə/) is a class of joint-legged invertebrate animals (arthropods), in the subphylum Chelicerata. Arachnida includes, among others, spiders, scorpions, ticks, mites, pseudoscorpions, harvestmen, camel spiders, whip spiders and vinegaroons.
Detailed explanation-2: -The chelicerae (/kəˈlɪsəriː/) are the mouthparts of the subphylum Chelicerata, an arthropod group that includes arachnids, horseshoe crabs, and sea spiders. Commonly referred to as “jaws", chelicerae may be shaped as either articulated fangs, or similarly to pincers.
Detailed explanation-3: -It is generally agreed that the Chelicerata contain the classes Arachnida (spiders, scorpions, mites, etc.), Xiphosura (horseshoe crabs) and Eurypterida (sea scorpions, extinct).
Detailed explanation-4: -Horseshoe crabs are not actually crabs at all, they are much more closely related to spiders and other arachnids than they are to crabs or lobsters! There are four species of horseshoe crabs still around today.