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Sagot :
Answer:
it's the third option
Explanation:
they are multicellular Heterotrphs and don't have a backbone
Answer:
An invertebrate is an animal without a backbone. In fact, invertebrates don’t have any any bones at all! Invertebrates that you may be familiar with include spiders, worms, snails, lobsters, crabs and insects like butterflies. However, humans and other animals with backbones are vertebrates.
Explanation:
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