AnswerThese are the enterocoelomates.Starfish, sea urchins are examples.Generally animals of the phyla annelida, molluscs and anthropoda belong to this group.
They are animals formed by enterocoely; in which the mesoderm arises from the wall of the embryonic gut archentron. The latter is an hollow outgrowth which forms the coelom.It is the type of coelom found in deuterostome animals.
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Answer: D) Chemical Reaction A will have a higher reaction rate because its container has more thermal energy. This thermal energy will cause an increase in the motion and collisions of the reactants' particles.
More heat = more reaction
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