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Data and Observations:

Investigation: All organisms are composed of cells.

What is the main function of each part of the compound microscope?

Part

Function

Eye piece



Ocular lens



Objective lenses



Slide



Cover slip



Stage



Focusing dials



Light



Condenser lens



Observe each specimen under the microscope, and record a description about its appearance.

Specimen Type

Description

Plant cell



Animal cell



Bacteria cell





Investigation: Cells come from existing cells.

Observe the two flasks, and record information about their appearance.

Day

Flask with open (broken) neck

Flask with intact neck

1





2





3





4





5







Investigation: Cells are the basic unit of life.

Observe the two petri dishes, and record information about their appearance.

Day

Petri dish (on left) containing agar plus nutrients

Petri dish (on right) containing agar without nutrients

1





2





3





4





5