Answer:
carbohydrates, lipids, proteins, and nucleotides
Explanation:
carbohydrates, lipids, proteins, and nucleotides are compounds essential to the human body.
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answered by aurinda
hope it helps:)
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1. Specialized cells perform specific functions for the body, enabling the organism to survive.
Answer:
Center seeking is a force that makes a body follow a curved path
In the spinal cord the central canal is lined with ependymal cell and contain cerebrospinal fluid. central canal is a conduit that runs the entire length of spinal cord. Ependymal cell plays an importance role in production and regulation of cerebrospinal fluid.
