BIOLOGICAL CLASSIFICATION
KINGDOM ANIMALS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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a back bone
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no backbone
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Either A or B
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None of the above
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Detailed explanation-1: -An invertebrate is a cold-blooded animal with no backbone. Invertebrates can live on land-like insects, spiders, and worms-or in water. Marine invertebrates include crustaceans (such as crabs and lobsters), mollusks (such as squids and clams), and coral.
Detailed explanation-2: -HOW DO ANIMALS SURVIVE WITHOUT BONES? Insects, crustaceans, and many other invertebrates have a hard outer case called an exoskeleton. This protects them against blows and predators, and keeps them from drying out.
Detailed explanation-3: -Invertebrates do not have backbones or internal skeletons, but some have hard coverings. Insects, spiders, worms, snails, and most ocean animals are invertebrates.
Detailed explanation-4: -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-5: -Worldwide in distribution, they include animals as diverse as sea stars, sea urchins, earthworms, sponges, jellyfish, lobsters, crabs, insects, spiders, snails, clams, and squid.