1 |
When a plant was kept in darkness for many days, its leaves turnes yellow. Why? |
- A. Leaves could not yet oxygen and so there was no photosynthesis
- B. Leaves could not get light and so there was no respiration
- C. Leaves could not get oxygen and so there was no respiration
- D. Leaves could not get light and so there was no photosynthesis
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2 |
Which of the following tissue layer is found in all blood vessels? |
- A. Smooth muscle
- B. Endothelium
- C. Skeletal muscle
- D. Connective tissue
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3 |
things like manure, seaweed, sewage etc are example of .............. fertilizers. |
- A. Organic
- B. Inorganic
- C. Both
- D. None
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4 |
Which one of the following convert protein to amino acids? |
- A. Protease
- B. Lipase
- C. Both
- D. None
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5 |
Plants lack ................... . |
- A. Protein
- B. Centrioles
- C. Spindle fibers
- D. Cytokisnesis
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6 |
____________ is the characters of kingdom. |
- A. Heterotrophic `
- B. Chlorophyll
- C. Autotrophic
- D. All of them
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7 |
Was the first person to observe single celled organism. |
- A. Robert Brown
- B. Leeuwenhoek
- C. Robert Hooke
- D. Dolland
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8 |
Quantitative observations are considered more accurate than qualitative observation because quantitative are |
- A. Invariable
- B. Measurable
- C. Recorded in terms of numbers
- D. All of these
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9 |
Exchange of water vapours and gases occurs in leaf through: |
- A. Stomata
- B. Epidermics
- C. Xylem
- D. Phloem
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10 |
Which of the following is not a macronutrient? |
- A. Nitrogen
- B. Oxygen
- C. Carbon
- D. Nickel
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