Answer: The nervous system
Explanation:
The first part of the embryo to develop is the neural tube, which will become the spinal cord and brain. As the nervous system starts to develop, the tiny heart starts to pump blood, and other parts of the body—such as the digestive tract and backbone—begin to emerge.
Hamburger becuase you cook it on a grill and then you put it in a bun. You can add pickels, cheese, mayo, ketchup, and pretty much anything to it.
i hope im right
So that we can be healthy and learn how to take good care of our bodies
<span>Muscles are made of fibers?
-true
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