It contracts and relaxes!
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Answer: shape- torpedo shaped , Fins- dorsal and side fins
Explanation:
Dolphin is a part of the Cetacean family, which also includes whales and porpoises while sharks are cartilaginous fishes of the class Chondrichthyes which means they have skeletons that are made of cartilage rather than bone. Shark and dolphin tends to look alike although the are not related but because they share the same habitat and have some similar body features such as Body shape, fin and tail they are mostly grouped together as the same.
natural selection favored a particular shape over other shapes for rapid movement through the seas and fin which made them a predator in the ocean this makes them look similar.
Answer:
2) problem-solving
Explanation:
The problem-solving approach as a marketing tool that seeks to initiate and improve customer relationships, is a type of approach to personal selling which involves defining a problem as well as providing and evaluating alternative solutions for customers. This approach is an extension of need satisfaction selling as it seeks to address the dissatisfaction of a customer as well as taking the customer’s problem personally.
the answer is thrombocytes