True
Explanation:
If the net force on an object at rest is zero, the object will remain at rest. This is one of the postulates of newton's law of motion.
Newton's first law of motion states that "an object will continue in its state of rest or uniform motion unless if it is acted upon by an external force. "
- If no net force acts on a body, it will forever remain at rest.
- The force on a body causes its motion and acceleration.
- A body will continue in uniform motion if no external force acts on it.
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Answer: the main function is to control what goes in and out of the cell. It is made of a double layer of lipids (fats) imbedded with odd-looking protein molecules. Because it is a fat, only some things that are very tiny, like water and oxygen pass through this part.
Explanation:
<span>The carapace or shell is an exoskeleton or external skeleton found in certain invertebrates. The carapace provides protection and rigidity to the organism. In rats the skeleton gives rigidity and protects organs.
Also, the muscular system helps in maintaining shape and helps protect many organs.
Hence the skeleton and muscles in rats perform equivalent functions as the carapace of other animals.</span>