Answer these biology questions about microscopes and fish.

Here are the answers to your questions:

Step 1: Fill in the Blanks (Questions 1-29)

1. The part of the microscope where the specimen is placed for viewing is called the stage.
2. The difference between smooth and rough endoplasmic reticulum is that Rough ER is attached with ribosomes.
3. If you want to see protozoans in pond water using the microscope, the steps are: Place a drop of pond water on a clean slide.
4. Cover with a coverslip.
5. Place the slide on the stage and focus using the objective lenses.
6. The major external difference between tilapia and catfish is Tilapia has scales, while catfish does not. 7