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The answer is B I know because I got it right on Apex
Answer:
Invertebrates without Exoskeletons
They use fluid in their bodies to keep their shape and move around. Some invertebrates without skeletons are jellyfish, slugs, and worms. Invertebrates that don't have exoskeletons need other ways to protect themselves. Jellyfish have powerful stingers on their tentacles.
A non-helical hydrostatic skeleton structure is the functional basis of the mammalian penis.[3] Helically reinforced hydrostatic skeleton structure is typical for flexible structures as in soft-bodied animals.
The Coleoidae do not have a true endoskeleton in the evolutionary sense; there, a mollusk exoskeleton evolved into several sorts of internal structure, the "cuttlebone" of cuttlefish being the best-known version. Yet they do have cartilaginous tissue in their body, even if it is not mineralized, especially in the head, where it forms a primitive cranium. The endoskeleton gives shape, support, and protection to the body and provides a means of locomotion.
Explanation:
Answer:
In the first excerpt, the purpose is to justify, and in the second is to to inform.
Explanation:
The declaration of independence is structured starting with a feeling from the country: "In every stage of these Oppressions", and the constitution's preamble starts stating who were the authors: "We the People of the United States"
Then, the declaration states who the authors are: "the Representatives of the united States of America" while the preamble shows the reasons of the coming constitution
Finally, the declaration states its main purpose and the preamble also declares the purpose of the constitution.
The tone in the declaration is dramatic, and in the preamble it is a lot more sober.