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1.they have basically three body parts i.e: head , thorax and abdomen. 2.they have no lungs. they respire through their skin. 3.they live in colonies . 4.some are harmful for humans like termite, mosquitoes jelly fish and houseflies. 5.they lay eggs and not babies.

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14y ago
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14y ago

Gills, fins scales, and a variety of body shapes.Fish have evolved to inhabit both fresh and saltwater.

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Anonymous

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3y ago

Main feature of a fish

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Q: What are the main features of invertebrates?
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What are the features of invertebrates?

no backbone


Features of invertebrates?

Invertebrates are creatures with no backbone. Instead they might have an exoskeleton.


What features do mollusus have?

mollusus are slimey invertebrates


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Walruses mostly eat invertebrates. Invertebrates are animals that do not have backbones


What are the 2 main categories of animals?

Vertebrates and invertebrates.


What are 2 main types of animals?

The two main types of animals are vertebrates, and invertebrates. This is classified as animals with a back bone (vertebrates), and animals without a back bone (invertebrates).


What two categories are animal divided?

you can put them in any groups, but the 2 main groups you are looking for are called = invertebrates and invertebrates (vertebrates have bones and invertebrates don't have any bones)


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What are the unique features for the octopus?

They are highly intelligent, more so than other invertebrates. They are also symmetrical.


What are the features of Echinoderms?

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