Most of mycorrhizae are present in:
Correct answer: D. 90% of angiosperms
- A. 50% of vascular plants
- B. 70% of angiosperms
- C. 70% of gymnosperms
- D. 90% of angiosperms
Explanation
Answer is "90% of angiosperms"Explanation: Mycorrhizal fungi get sugar and shelter from the plant, and in exchange increase the plant's mineral nutrient uptake efficiency. Mycorrhizae are present in 90% families of flowering plants.
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About Forms and Functions of Plants
Plant nutrition and transport cover mineral uptake, photosynthesis, xylem movement of water and minerals, and phloem translocation of sugars. Plant growth regulators include auxins, gibberellins, cytokinins, abscisic acid and ethene, whose effects on cell division, elongation, dormancy, fruit ripening and tropic responses should not be confused with mineral nutrition.
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