The correct answer is absence of jaws.
Lampreys and hagfish are in the class Agnatha, they are jaw-less fish. The members of the agantha class are probably the earliest vertebrates. Scientists have found fossils of agnathan species from the late Cambrian period that occurred 500 million years ago.
Answer: She spun faster because her mass was closer to her center of rotation. The rate of spin increased to conserve angular momentum.
Explanation: plato answer
Answer: The skeletal system works as a support structure for your body. It gives the body its shape, allows movement, makes blood cells, provides protection for organs and stores minerals. The skeletal system is also called the musculoskeletal system.
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Answer:
The same number of each type of atom will always be present before and after a chemical reaction takes place.
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