1. What is the difference between an independent variable and a dependent variable
IV = what is different in each group
DV = measurement

2. 2. What is the difference between an experimental group and control group?
Experimental Group = IV
Control Group = no IV

3. 3. An experiment was done to test of light affect plant growth
3. An experiment was done to test of light affect plant growth. Identify the IV, DV, control group, experimental group, and 1 constant.
IV = what is different in each group
DV = measurement

4. 4. What are the 5 levels of organization in an multicellular organism?
Cells  tissue  organ  organ system  organism

5. 5. What contributions did the following scientists make:
Hooke, Schwann, Schleidan, Virchow
Hooke = look at cork, named cells
Schwann = all animals
Schleidan = All plants are made of cells
Virchow = all cells come from pre-existing cells

6. 6. Label the atom below. A = electron B = proton C = neutron + + +

7. 7. Identify the function of the following organelles:
Nucleus, cell membrane, golgi bodies, ribosomes, cell wall, vacuole
Nucleus = control
Cell membrane = semi-permeable
Ribosomes = makes proteins
Cell wall = plant cell shape
Vacuole = stoarage

8. 8. Identify the functions of the following nutrients: carbs, lipids, proteins, vitamins
Carbs = energy
Lipids, store energy, cushion, store some vitamins
Proteins = build and repair
Vitamins = regulate body functions

9. 9. What is the difference between passive and active transport?
Passive = no energy, high low
Active = energy needed, low  high

10. 10. Which type of respiration:
Needs oxygen
Produces 2 ATP
Happens in muscles when oxygen runs out
A. aerobic
B. anaerobic
Lactic acid fermentation

11. 11. Identify the phases of matter below:
Solid
Liquid
Gas

12. 12. Why is cartilage needed in the body?
Ends of bones
Shock absorber
Cushions
Shape to ears and nose

13. 13. What type of joint is found in the:
Shoulder, neck, wrist, skull, elbow
Ball and socket
Pivot
Gliding
Immovable
hinge

14. 14. Identify the following properties as physical or chemical:
Color, flammability, volume, reacts with oxygen
Physical
Chemical

15. 15. Identify the following changes as physical or chemical:
Cutting, burning, rusting, chewing food
Physical
Chemical

16. 16. Identify the part of bone being described:
Tough outer membrane
Makes blood cells
Lightweight for added strength
Periosteum
Marrow
Spongy bone

17. 17. Identify the following parts of the box below:
Atomic number, Atomic mass, Mass number, # of protons, # of neutrons 42
95.94 96 54

18. 18. What is a mixture? What is a solution?
Mixture = 2 or more substances physically combined, can easily be separated
Solution = type of mixture in which one material (solute) dissolves in another ( solvent)

19. 19. Where does mechanical digestion occur in the digestive system?
Where does chemical digestion occur?
Mechanical = mouth, stomach
Chemical = mouth, stomach, SI

20. 20. Where does digestion begin? Where does it end?
Mouth
Small intestine (duodenum)

21. 21. How does gas exchange occur n the respiratory system?
Between alveoli and capillaries

22. 22. Identify the type of immunity being described:
temporary, antibodies from someone else
permanent, your own antibodies
A. passive
B. active

23. 23. Explain the differences between an artery, vein, and capillary.
Artery = AWAY, thickest
Vein = bring blood to the heart, have valves
Capillary = thinnest, exchange of materials

24. 24. Identify and describe the 3 types of circulation.
Pulmonary = between lungs and heart
Coronary = between heart and heart cells
Systemic = between heart and body

25. 25. What are red blood cells made of and what do they do?
Hemoglobin
Carries oxygen and carbon dioxide

26. 26. What part of the blood:
protects the body against disease
clots the blood
liquid
A. white blood cells
B. Platelets
C. plasma

27. 27. Explain the difference between an infectious disease and a noninfectious disease.
Infectious = spreads, pathogen
Noninfectious = cannot be spread from person to person, no pathogen

28. 28. What is the function of the kidneys?
Filters the blood, maintains water balance, produces urine

29. 29. Explain the difference between a ureter and a urethra.
Ureter = carries urine to bladder
Urethra = carries urine out of the body