Identify the correct statement(s) regarding the modifications seen in stems:
 
I: Stem tendrils develop from axillary buds and help plants, such as pea, to climb
II: Opuntia modifies its stems into flattened structures to protect itself from browsing animals
III: Underground stems of some plants such as grass and strawberry spread to new niches and when older plants die, new plants are formed.
 
1. I, II, and III
2. Only II and III
3. Only III
4. Only I and III
Subtopic:   Modifications of Stem |
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The lateral branches originate from the basal and underground portion of the main stem, grow horizontally beneath the soil, and then come out obliquely upward giving rise to leafy shoots in 
1. Pistia and Eichhornia
2. Pineapple and Chrysanthemum 
3. Mint and Jasmine 
4. Opuntia and Euphorbia
Subtopic:   Modifications of Stem |
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