____ is an optical instrument that enable one to see clearly the structures that are too small to be seen by the naked eye.

The following are the mechanical parts of the microscope EXCEPT:

This is an image of what?

A ______ cell contains membrane-bound organelles. Fungi, plant and animals cell are example of it.

It is the powerhouse of the cell.

The basic unit of life is called_______.

________________ is when both organisms benefits with each other.

The living components in an ecosystem.

Reduction of chlorofluorocarbon helps maintain a balanced ecosystem.