Because a single celled organism is not as adapted to the tasks at hand and is not as effective as a multi-celled organism. Having a multi-celled organism, specific cells in his body can perform specific tasks which grant him a faster exeuction time of these tasks as opposed to a single-celled organism.
Answer:
Various scientists describe asteroids in different ways:
- Some scientists consider it to be rocks which orbit around the sun.
- Other consider it to be small planets.
The majority of the scientists agree that asteroids might have come into existence at the time of solar formation. The parts which broke down during the formation of the solar system resulted in the formation of asteroids.
<u><em>Scientists believe that asteroids might not have a major function in the universe but studying them would be of great benefit. This is because as they are parts broken from the solar system, exploring them will let us know about some unknown features of the other solar system bodies. </em></u>
It increases environmental awareness.