1. Which of the**following**is NOT a characteristic common to all living organisms?
!! !! F F F F F F F F
A. Organization
B. Ability to respond to stimuliF F F F
C. Ability to fly F F
D. Reproduction
Answer: C
F F
2. What is the smallest structural and functional unit of an organism?
F F F F F F F F F F
A. Atom
B. Molecule
C. Cell
D. Tissue F
Answer: C F
3. Biology is best defined as: F F F F
A. The study of human behavior
F F F F
B. The study of living organisms and their environments
F F F F F F F
C. The study of plants only
F F F F
D. The study of chemical reactions
F F F F F
Answer: B F
4. Which level of organization comes immediately after molecules?
F F F F F F F
A. Atoms
B. Cells
C. Tissues
D. Organs
Answer: B
F F
5. True or False: Bacteria are multicellular organisms.
F F F F F F F
Answer: False F
6. What is a tissue? F F F
A. A single cell
F F
B. A group of similar cells that perform a particular function
F F F F F F F F F
C. A collection of different organs
F F F F
D. An entire organism
F F F
Answer: B F
7. The brain and spinal cord are examples of which level of organization?
F F F F F F F F F F F
A. Tissue
B. Organ
,C. Organ system F
D. Organism
Answer: C
F F
8. All members of one species in a particular area belong to a:
F F F F F F F F F F F
A. Community
B. Population
C. Ecosystem
D. Biosphere
Answer: B
F F
9. True or False: The biosphere includes all of Earth's ecosystems collectively.
F F F F F F F F F F F
Answer: True F
10. What is energy defined as?
F F F F
A. The capacity to do work
F F F F
B. A type of molecule
F F F
C. A living organism
F F
D. A chemical reaction
F F F
Answer: A F
11. Which process do plants use to convert solar energy into chemical energy?
F F F F F F F F F F F
A. Respiration
B. Photosynthesis
C. Metabolism
D. Homeostasis
Answer: B
F F
12. Metabolism is: F
A. The death of an organism
F F F F
B. The sum of all chemical reactions in a cell or organism
F F F F F F F F F F
C. A type of reproduction
F F F
D. A form of energy
F F F F
Answer: B F
13. True or False: Humans acquire energy by eating food.
F F F F F F F F F
Answer: True F
14. What is the ultimate source of energy for most life on Earth?
F F F F F F F F F F F
A. The moon F
B. The sun F
C. Wind
D. Water F
Answer: B F
15. Homeostasis refers to: F F
,A. Growth and development
F F
B. Maintaining a constant internal environment F F F F
C. Reproduction
D. Evolution
Answer: B
F F
16. Normal human body temperature typically ranges between:
F F F F F F
A. 20-25°C
B. 30-35°C
C. 36.5-37.5°C
D. 40-45°C
Answer: C F
17. True or False: The digestive system plays no role in maintaining homeostasis.
F F F F F F F F F F F F
Answer: False
F
18. Which systems work together to maintain body temperature?
F F F F F F F
A. Cardiovascular and nervous systems F F F
B. Only the skeletal system
F F F
C. Only the respiratory system
F F F
D. None of the above
F F F F
Answer: A F
19. Response to stimuli in humans often involves:
F F F F F F
A. Movement
B. Complete stillness F
C. Sleep
D. Reproduction
Answer: A
F F
20. True or False: Plants can respond to external stimuli.
F F F F F F F F F
Answer: TrueF
21. DNA stands for:
F F
A. Deoxyribonitrogen acid F
B. Deoxyribonucleic acid F
C. Dinitrogen acid F
D. Double nucleus acid F F F
Answer: B F
22. Genes are: F
A. Large organisms
F
B. Short sequences of hereditary material
F F F F
C. Types of cells F F
D. Energy molecules F
, Answer: B F
23. True or False: Mutations are always harmful to organisms.
F F F F F F F F F
Answer: False F
24. Before reproduction occurs, DNA is:
F F F F
A. Destroyed
B. Replicated
C. Eliminated
D. Frozen F
Answer: B F
25. Evolution is best defined as: F F F F
A. The process by which a population changes over time
F F F F F F F F
B. The growth of an individual
F F F F
C. The death of species
F F F
D. A single mutation
F F F
Answer: A F
26. Natural selection results in: F F F
A. Random changes F
B. Adaptation to the environment F F F
C. Elimination of all species F F F
D. Cessation of reproduction F F F
Answer: B F
27. True or False: Humans living at high elevations in Tibet show adaptations to low
F F F F F F F F F F F F F F
oxygen environments.
F
Answer: True F
28. The EPSA1 gene in Tibetans affects:
F F F F F
A. Height
B. Hemoglobin production F
C. Skin color
F
D. Eye color
F F
Answer: B F
29. Which domain contains prokaryotes that lack a nucleus?
F F F F F F F
A. Eukarya only F
B. Bacteria and Archaea F F
C. Plantae
D. Animalia
Answer: B
F F