SSC
BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Has an endoskeleton
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Has a backbone
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Has no backbone
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Has no endoskeleton
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Detailed explanation-1: -Animals without backbones are called invertebrates. They range from well known animals such as jellyfish, corals, slugs, snails, mussels, octopuses, crabs, shrimps, spiders, butterflies and beetles to much less well known animals such as flatworms, tapeworms, siphunculids, sea-mats and ticks.
Detailed explanation-2: -Invertebrates: The animals that do not possess backbones are known as vertebrates. These animals are mostly soft-bodied. For example Earthworms, snails, sponges, etc.
Detailed explanation-3: -Snails, clams, oysters, and mussels are examples of mollusks. A mollusk has a soft body. Arthropods are animals with jointed legs such as spiders, insects, lobsters, and crabs. Share the background information with the students.