,Chapter 1: Exploring Life and Science br br br br br
1. Which of the following is NOT a characteristic common to all living organisms?
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A. Organization
B. Ability to respond to stimuli
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C. Ability to fly br br
D. Reproduction
Answer: C
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2. What is the smallest structural and functional unit of an organism?
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A. Atom
B. Molecule
C. Cell
D. Tissue br
Answer: C br
3. Biology is best defined as: br br br br
A. The study of human behavior
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B. The study of living organisms and their environments
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C. The study of plants only
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D. The study of chemical reactions
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Answer: B br
4. Which level of organization comes immediately after molecules?
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A. Atoms
B. Cells
C. Tissues
D. Organs
Answer: B
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5. True or False: Bacteria are multicellular organisms.
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Answer: False br
6. What is a tissue? br br br
A. A single cell
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B. A group of similar cells that perform a particular function
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C. A collection of different organs
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D. An entire organism
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Answer: B br
7. The brain and spinal cord are examples of which level of organization?
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A. Tissue
B. Organ
,C. Organ system br
D. Organism
Answer: C
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8. All members of one species in a particular area belong to a:
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A. Community
B. Population
C. Ecosystem
D. Biosphere
Answer: B
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9. True or False: The biosphere includes all of Earth's ecosystems collectively. A
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nswer: True br
10. What is energy defined as? br br br br
A. The capacity to do work
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B. A type of molecule
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C. A living organism
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D. A chemical reaction
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Answer: A br
11. Which process do plants use to convert solar energy into chemical energy?
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A. Respiration
B. Photosynthesis
C. Metabolism
D. Homeostasis
Answer: B
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12. Metabolism is: br
A. The death of an organism
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B. The sum of all chemical reactions in a cell or organism
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C. A type of reproduction
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D. A form of energy
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Answer: B br
13. True or False: Humans acquire energy by eating food.
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Answer: True br
14. What is the ultimate source of energy for most life on Earth?
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A. The moon br
B. The sun br
C. Wind
D. Water br
Answer: B br
15. Homeostasis refers to: br br
, A. Growth and development br br
B. Maintaining a constant internal environment br br br br
C. Reproduction
D. Evolution
Answer: B
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16. Normal human body temperature typically ranges between:
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A. 20-25°C
B. 30-35°C
C. 36.5-37.5°C
D. 40-45°C
Answer: C br
17. True or False: The digestive system plays no role in maintaining homeostasis. A
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nswer: False
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18. Which systems work together to maintain body temperature?
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A. Cardiovascular and nervous systems br br br
B. Only the skeletal system
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C. Only the respiratory system
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D. None of the above
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Answer: A br
19. Response to stimuli in humans often involves: br br br br br br
A. Movement
B. Complete stillness br
C. Sleep
D. Reproduction
Answer: A
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20. True or False: Plants can respond to external stimuli.
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Answer: True br
21. DNA stands for:
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A. Deoxyribonitrogen acid br
B. Deoxyribonucleic acid br
C. Dinitrogen acid br
D. Double nucleus acid br br br
Answer: B br
22. Genes are: br
A. Large organismsbr
B. Short sequences of hereditary material
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C. Types of cells br br
D. Energy molecules br
1. Which of the following is NOT a characteristic common to all living organisms?
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A. Organization
B. Ability to respond to stimuli
br br br br
C. Ability to fly br br
D. Reproduction
Answer: C
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2. What is the smallest structural and functional unit of an organism?
br br br br br br br br br br
A. Atom
B. Molecule
C. Cell
D. Tissue br
Answer: C br
3. Biology is best defined as: br br br br
A. The study of human behavior
br br br br
B. The study of living organisms and their environments
br br br br br br br
C. The study of plants only
br br br br
D. The study of chemical reactions
br br br br br
Answer: B br
4. Which level of organization comes immediately after molecules?
br br br br br br br
A. Atoms
B. Cells
C. Tissues
D. Organs
Answer: B
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5. True or False: Bacteria are multicellular organisms.
br br br br br br br
Answer: False br
6. What is a tissue? br br br
A. A single cell
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B. A group of similar cells that perform a particular function
br br br br br br br br br
C. A collection of different organs
br br br br
D. An entire organism
br br br
Answer: B br
7. The brain and spinal cord are examples of which level of organization?
br br br br br br br br br br br
A. Tissue
B. Organ
,C. Organ system br
D. Organism
Answer: C
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8. All members of one species in a particular area belong to a:
br br br br br br br br br br br
A. Community
B. Population
C. Ecosystem
D. Biosphere
Answer: B
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9. True or False: The biosphere includes all of Earth's ecosystems collectively. A
br br br br br br br br br br br
nswer: True br
10. What is energy defined as? br br br br
A. The capacity to do work
br br br br
B. A type of molecule
br br br
C. A living organism
br br
D. A chemical reaction
br br br
Answer: A br
11. Which process do plants use to convert solar energy into chemical energy?
br br br br br br br br br br br
A. Respiration
B. Photosynthesis
C. Metabolism
D. Homeostasis
Answer: B
br br
12. Metabolism is: br
A. The death of an organism
br br br br
B. The sum of all chemical reactions in a cell or organism
br br br br br br br br br br
C. A type of reproduction
br br br
D. A form of energy
br br br br
Answer: B br
13. True or False: Humans acquire energy by eating food.
br br br br br br br br br
Answer: True br
14. What is the ultimate source of energy for most life on Earth?
br br br br br br br br br br br
A. The moon br
B. The sun br
C. Wind
D. Water br
Answer: B br
15. Homeostasis refers to: br br
, A. Growth and development br br
B. Maintaining a constant internal environment br br br br
C. Reproduction
D. Evolution
Answer: B
br br
16. Normal human body temperature typically ranges between:
br br br br br br
A. 20-25°C
B. 30-35°C
C. 36.5-37.5°C
D. 40-45°C
Answer: C br
17. True or False: The digestive system plays no role in maintaining homeostasis. A
br br br br br br br br br br br br
nswer: False
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18. Which systems work together to maintain body temperature?
br br br br br br br
A. Cardiovascular and nervous systems br br br
B. Only the skeletal system
br br br
C. Only the respiratory system
br br br
D. None of the above
br br br br
Answer: A br
19. Response to stimuli in humans often involves: br br br br br br
A. Movement
B. Complete stillness br
C. Sleep
D. Reproduction
Answer: A
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20. True or False: Plants can respond to external stimuli.
br br br br br br br br br
Answer: True br
21. DNA stands for:
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A. Deoxyribonitrogen acid br
B. Deoxyribonucleic acid br
C. Dinitrogen acid br
D. Double nucleus acid br br br
Answer: B br
22. Genes are: br
A. Large organismsbr
B. Short sequences of hereditary material
br br br br
C. Types of cells br br
D. Energy molecules br
