Answer:
B. So you can always see the entire object at the higher magnification
Explanation:
A microscope is used to view objects smaller than the naked or unaided eyes can see. The objective lens, in conjunction with the occular or eye lens, is used to achieve this purpose. The objective lens are of different magnifications as follows: 10X, 40X, 100X etc.
However, as the magnification increases i.e. higher objective, the object in the field of view becomes smaller and less focused. Hence, the object in the field of view must first be centered at a lower magnification/objective lens before changing to a higher one in order for the entire object to be seen at a higher magnification.
Prolonged space travel affect the muscular system by making it weaker since there is no gravity for you mussels to fight
Answer:
The Plants and animals all on the surface of the Earth. Disintegrate into the ground. That is A human related proble.
Explanation:
Any process that happened on Earth such as plate tonics weathering and the breakdown of rocks into smaller particles.
Every type of cell is capable of regeneration from bacteria to humans to animals.