it is an organ. the main organ in the body. I wish your question was a little more clear, like multiple choice would be very helpful to what my choices are.
First one, disease causing microorganisms
Come into existence and develop
The maximum density is 4 degrees Celsius :)
When an object is in motion, it possesses kinetic energy.
Option b is the only correct answer
<h3>What is kinetic energy?</h3>
Kinetic energy is the energy a body has or possess due to its relative motion.
Some few examples of kinetic energy are as follows:
- Running
- Walking
- Cycling
- Car movement
- Aeroplane flying
Learn more about kinetic energy:
brainly.com/question/8101588