1. Unit 1 Review

2. Controlled Experiments Involve one variable that changes Involve one variable that changes Variables Variables Independent – the variable you are testing Independent – the variable you are testing Dependent – the variable that changes as a result, the data you collect Dependent – the variable that changes as a result, the data you collect Controlled – the variables that stay the same in all setups Controlled – the variables that stay the same in all setups Groups Groups Control – the group that does not have the variable being tested (or at normal conditions) Control – the group that does not have the variable being tested (or at normal conditions) Experimental – groups that have different levels of the variable being tested. Experimental – groups that have different levels of the variable being tested.

3. A controlled experiment allows a scientist to isolate and test A controlled experiment allows a scientist to isolate and test A. A logical conclusion A. A logical conclusion B. A variety of information B. A variety of information C. A single variable C. A single variable D. Several Variables D. Several Variables

4. The development of an experimental research plan should NOT include: The development of an experimental research plan should NOT include: A. A list of safety precautions for the experiment A. A list of safety precautions for the experiment B. List of equipment needed for conducting the experiment B. List of equipment needed for conducting the experiment C. Procedure for the use of technologies needed for the experiment C. Procedure for the use of technologies needed for the experiment D. Conclusion based on the data expected to be collected during the experiment D. Conclusion based on the data expected to be collected during the experiment

5. While outside raking leaves, you notice several slugs underneath fallen leaves and logs. Describe some parts of an experiment to determine the preference of slugs for light or darkness. Make sure you: State the hypothesis State the hypothesis Identify the independent variable Identify the independent variable Identify two conditions that should stay the same in all experimental setups Identify two conditions that should stay the same in all experimental setups State one example of the data that would support your hypothesis State one example of the data that would support your hypothesis

6. Characteristics of life Living things are made of cells Living things are made of cells Living things grow and develop Living things grow and develop Living things have levels of organization Living things have levels of organization Living Things reproduce Living Things reproduce Living things use energy Living things use energy Living things respond to their environment Living things respond to their environment Groups of Living things evolve Groups of Living things evolve

7. Life Functions Nutrition (Ingestion, Digestion) Nutrition (Ingestion, Digestion) Transport Transport Excretion Excretion Reproduction Reproduction Respiration (Energy) Respiration (Energy) Synthesis Synthesis Regulation Regulation Growth Growth Metabolism Metabolism

8. A characteristic of all living things is that they A characteristic of all living things is that they A. Use carbon dioxide A. Use carbon dioxide B. Use atmospheric oxygen B. Use atmospheric oxygen C. Carry on metabolic Activities C. Carry on metabolic Activities D. Are capable of locomotion D. Are capable of locomotion

9. It is known that laboratory rats do not require vitamin C in their diet. However, vitamin C is found in their tissues. The vitamin C is present due to a process known as It is known that laboratory rats do not require vitamin C in their diet. However, vitamin C is found in their tissues. The vitamin C is present due to a process known as A. Excretion A. Excretion B. Locomotion B. Locomotion C. Synthesis C. Synthesis D. Osmosis D. Osmosis

10. Which term includes all the activities required to keep an organism alive? Which term includes all the activities required to keep an organism alive? A. Metabolism A. Metabolism B. Growth B. Growth C. Nutrition C. Nutrition D. Excretion D. Excretion

11. An activity carried on by every living plant and animal is: An activity carried on by every living plant and animal is: A. Reproduction A. Reproduction B. Respiration B. Respiration C. Photosynthesis C. Photosynthesis D. Transpiration D. Transpiration

12. An organelle differs from an organ in that an organelle An organelle differs from an organ in that an organelle A. Is a substructure of a cell A. Is a substructure of a cell B. Contains one specific type of tissue B. Contains one specific type of tissue C. Is larger than an organ C. Is larger than an organ D. Cannot be stained D. Cannot be stained

13. Write the structure listed below in order from least to most complex Organ Organ Cell Cell Organism Organism Atom Atom Organelle Organelle Molecule Molecule Tissue Tissue Organ System Organ System

14. Homeostasis Maintaining a stable internal environmental in a changing external environment Maintaining a stable internal environmental in a changing external environment Insulin – lowers blood sugar Insulin – lowers blood sugar Stomata – Guard cells get larger the stomata (openings) are smaller so less water is lost from plants on a hot day Stomata – Guard cells get larger the stomata (openings) are smaller so less water is lost from plants on a hot day Sweat – evaporates to lower our body temperature Sweat – evaporates to lower our body temperature

15. Homeostatic regulation of the body is made possible through the coordination of all body systems. This coordination is achieved mainly by: Homeostatic regulation of the body is made possible through the coordination of all body systems. This coordination is achieved mainly by: A. Skeletal and excretory systems A. Skeletal and excretory systems B. Respiratory and Reproductive Systems B. Respiratory and Reproductive Systems C. Nervous and endocrine systems C. Nervous and endocrine systems D. Circulatory and digestive systems D. Circulatory and digestive systems

16. Explain how guard cells in both land and water plants help maintain homeostasis. In your answer be sure to: Explain how guard cells in both land and water plants help maintain homeostasis. In your answer be sure to: Identify one function regulated by guard cells in leaves Identify one function regulated by guard cells in leaves Explain how guard cells carry out this function Explain how guard cells carry out this function

17. Measurement Metric System – prefixes Metric System – prefixes K H Da Base d c m K H Da Base d c m Mass – grams – triple beam balance Mass – grams – triple beam balance Volume – liter – graduated cylinder/beaker Volume – liter – graduated cylinder/beaker Length – meters – ruler Length – meters – ruler ** Know parts of the microscope ** Know parts of the microscope

18. The width of a human hair is 0.1 mm. The width of this hair in meters is: The width of a human hair is 0.1 mm. The width of this hair in meters is: A. 1 meter A. 1 meter B. 10 meters B. 10 meters C. 0.001 meters C. 0.001 meters D. 0.0001 meters D. 0.0001 meters