1. what do you call the platform connected to the arm which has a round opening up (aperture) where the specimen or glass side is mounted for viewing
A. condenser B.base C.stage D.ocular

2. what tools used by the scientist observe objects and seem to the naked eye
A.telescope B.microscope C. cellphone D.camera

3. which of the following differentiates organs from tissues
A. organs and tissues are made up of cells
B. organs and tissues make up an organ system
C. organs make up organ systems; cells make up tissues
D. organs made up organ system; tissues make up organs.

4.the organ system of plants consist of the root and shoot system why is it important for these organ systems work together
A. To grow and survive
B. to avoid pets and other animals
C. to hide floods and strong winds
D. to survive droughts and earthquakes​