Echinoderms are not arthropods like the others. Starfish and sand dollars are echinoderms.
I think its A
The Gulf Stream<span>, together with its </span>northern<span> extension towards </span>Europe<span>, the </span>North<span> Atlantic Drift, .... A river of sea </span>water<span>, called the Atlantic </span>North<span> Equatorial </span>Current<span>, </span>flows<span> westward off ... </span>These<span> two branches rejoin </span>north<span> of the Straits of Florida. ... The </span>warm water<span> and temperature contrast along the edge of </span>the Gulf Stream<span> often ...</span>
28.5 is quantitative data
What we know about shark and ray fossils comes from bones in rocks from the Cretaceous period in Mexico that left behind, their only hard parts.
<h3>Shark fossils</h3>
The idea of a stingray-like shark may seem like something out of a B-movie. But paleontologists have just reported the discovery of such a creature in Cretaceous rocks in Mexico. This strange shark combines a streamlined body with large, wing-shaped fins, an ancient animal unlike any seen in the fossil record.
<h3>Whose are the fossils?</h3>
Fossils are the remains or traces of living beings that inhabited the Earth in previous geological periods. Fossil remains are parts of animals or plants, such as a bone or some limb or organic remains that have been preserved in some way.
With this information, we can conclude that Fossils are remains or traces of animals and plants preserved in rocks.
Learn more about Fossils in brainly.com/question/22502144
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