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Biology 8 Online
OpenStudy (anonymous):

someone help please .... . How are arthropods able to move despite having a hard exoskeleton? The exoskeleton is softer at the joints so the legs can be bent. They shed the exoskeleton and move around until it regrows. The exoskeleton does not entirely cover the legs.

OpenStudy (yolo_king):

I Think this is it The muscle structure of arthropods is more complex than that of most other invertebrates. Arthropods have longitudinal and circular bands of muscle tissue as well as isolated musles that together enable a wide range of movements. Additionally, arthropods have a well-developed nervous system. In more advanced arthropods, the nervous system consists of a brain and a double nerve cord. More primitive arthropods do not have a brain but instead have ganglia either located in each segment of their body or in a ganglionic mass near the head.

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