Do sea urchins contain teeth
Do sea urchins contain teeth?
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Sea urchins contain a teeth-like structure juxtaposed to the mouth and made up of five teeth joined to ossicles and muscle fibers. This structure, termed as Aristotle’s lantern, is utilized to scratch food, mostly algae, from marine rocks.
Describe the structure via which the neural impulse is transmitted from one cell to the other? Also name their parts?
This theory was formulated by J.S. Adams. It is based on the assumption that members of an organization experience strong expectations of justice, balance and fairness in treatment by the organization. When a person feels that he is being treated unfairly by the organization, these feelings can h
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Define the term ganglia? Briefly explain it.
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