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mote1985 [20]
3 years ago
8

What are the unique properties of the echinoderms within higher invertebrates?

Biology
1 answer:
Sholpan [36]3 years ago
7 0
The unique property of an echinoderm within higher invertebrates is their radial symmetry. These echinoderms include the famous starfish, sea urchin, sand dollars, sea cucumbers, and sea lilies. They are found at the ocean depth, form the intertidal zone to the abyssal zone.
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Sensory receptors in the arteries  detect low oxygen levels.

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Sensory neurons generate an impulse.

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The action or reaction is generated at the effector site such as an increase in the breathing rate of Isabel in this case.

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<h3>What hormones are produced by the hypothalamus and their functions?</h3>

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