Answer:
Lipids are macromolecules that include oils, waxes, phospholipids, and steroids.
An organ is made of tissues. A tissue is made from multiple cells that carry out the same function, For example : a cardiac muscle is made from many cells of the same type. An organ whereas is made from group of tissues which have similar structure and functions.
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Circulatory system, respiratory system, and the digestive system.
Answer:
active and passive transport
Explanation:
The central nervous system CNS is responsible for integrating sensory information and responding accordingly. It consists of two main components: The spinal cord serves as a conduit for signals between the brain and the rest of the body