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Muscles attach to the exoskeletons of invertebrates at sites called apodemes. Apodemes and the exoskeleton are primarily composed of a polymer called chitin.
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Which animals have no skeletons?
invertebrates
Are earthworms vertebrates or invertebrate?
potatoes
Is a worm a vertebrate or invertebrate?
Worms have no internal skeletons or backbones so they are invertebrates.
What are echinderms?
Echinoderms are invertebrates that have internal skeletons and spines sticking out from their bodies.
What do invertebrates have instead of bones?
Invertebrates do not have a spine (backbone) like vertebrates do. Fish, Birds, Reptiles, Amphibians, Mammals are vertebrates with internal skeletons, spines, heads, and brains with central nervous systems. All insects are invertebrates and they mostly have exoskeletons (external skeletons), and no backbones. Their internal organs make up the entire contents of their interior structures.
Are exoskeletons considered vertebrates?
No because creatures with exo-skeletons do not have a vertebrae. So they are invertebrates. :)
Difference in charateristics between vertebtrates and invertebrates?
Vertebrates have spinal cords, internal skeletons and backbones. Invertebrates do not have these characteristics. Some examples of invertebrates include jellyfish, earthworms and snails.?æ
How do starfish fit into the cladogram of invertebrates?
A starfish fits into the cladogram because invertebrates are being with exoskeletons or no skeletons at all it fits into the invertebrate part of the cladogram
Why are vertebrates able to grow larger than invertebrates?
Vertebrates have an internal skeleton and invertebrates have external skeletons. Vertebrates are able to grow larger than invertebrates because of this. Invertebrates would crush themselves under their own skeletons if they grew to a large size.
Is a stagbeetle a vertebrate?
No, all insects are invertebrates, they don't have skeletons or spinal columns, they have an exoskeleton instead.
Biochemical limestones are dominated by carbonate mud fragments of?
calcitic and aragonitic skeletons of marine invertebrates
Why don't jellyfish have skeletons?
because they are not a animals that have a back bone?
