| 1 |
This statemtn about homeostasis is inccorect. |
- A. There is one system regulating the homeostatic activities
- B. Because fo this , the fluctuations of the internal environment are of extremely narrow range as compared to that of the external environment
- C. Homeostatic mechanismsm keep the internal environment constant depite wide changes in the external environment
- D. Homeostasis is necessary for the survival of cells
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| 2 |
Whcih structure is not an organ. |
- A. Xylem
- B. Flower
- C. Artery
- D. Spinal Cord
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| 3 |
Which of the following lists the levels of body organization from smallest to largest. |
- A. Organism,organ system organ, tissue, cell
- B. Tissue, cell, orga, organ system organism
- C. Organ,organ system, organism, tissue , cell
- D. Cell, tissue, organ, organ system, organism
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| 4 |
Which description of xylem is correct. |
- A. A cell used for absorption
- B. A tissue used for trasnport
- C. An organ used for transport
- D. An organ system used for conduction
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| 5 |
At which level of organization gas exchagne occurs between body and environment. |
- A. Oganelle level in mitochndria
- B. Organ system level in the respiratory system
- C. Cellular level in alveolar cells
- D. Tissue level in epithelial tissues
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| 6 |
Which organ system is responsible for circulating blood in the human body. |
- A. Digestive
- B. Circulatory
- C. Nervous
- D. Respiratory
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| 7 |
Biological organization means. |
- A. Study of differente organisms
- B. Study of biology at differente levels
- C. Study of differente branches of biology
- D. Study of all the subjects of science
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| 8 |
What type of tissue lines the inner surface of the stomach. |
- A. Nervous
- B. Epithelial
- C. Muscular
- D. Connective
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| 9 |
In a plant, which of the following is the primary function of the flower. |
- A. Regulating gas exchange
- B. Facilitating reproduction through pollination
- C. Supporting leaf growth
- D. Transporting water and minerals
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| 10 |
Which of these is a function of the human skeletal system. |
- A. Storing minerals and producing blood cells
- B. Removing crbon dioxide from blood
- C. Filtering blood to remove waste products
- D. Breaking down food for energy.
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