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Life Science 1-3 Rev
Review for Assessment
Question | Answer |
---|---|
When focusing a specimen, you should always start with the ___________________ objective. | Coarse focus |
When using the high power objective, only the ________ knob should be used. | Fine focus |
You should always store your microscope with the ________________ objective in place. | low power (scanning power) |
What part of the microscope can adjust the amount of light that hits the slide? | Diaphragm |
Why do your cheek cells look different from your heart cells? | Because they perform different functions in your body. |
What did Anton von Leeuwenhoek discover under a microscope? | Pond water organisms moving |
What are the 5 characteristics of living things? | growth, reproduction, metabolism, and response to stimuli and made of cells |
What is an organism? | An individual animal, plant, or single-celled life form |
Mark all the things that are true both of single-celled organisms and a multi-celled organism. | grow, reproduce and use energy from food or make their own food |
What is the main difference between a paramecium and your cheek cell? | The paramecium can live on its own and your cheek cell cannot. |
List the organization of the human body start with cells, the basic unit of structure and end with you, the organism. | cells, tissues, organs, organ systems, organism |
Organisms can be made up of many cells or a single cell. | True |
______________________ rely on systems and subsystems to function properly and efficiently. | multi celled organisms |
A system is made up of parts that connect and interact. | True |
A system can contain a _______________ or be a ____________________ for a larger system | subsystem |