Biology, 21.07.2019 09:00 gabrielar80
Skeletons of early vertebrates were composed of cartilage instead of bone. which characteristic does cartilage share with notochords? a. it is hard and rigid. b. it is soft and flexible. c. it contracts. d. oxygen can diffuse through it
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Skeletons of early vertebrates were composed of cartilage instead of bone. which characteristic does...
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