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Read the following statements and select...

Read the following statements and select the correct option:-
A. Gymnosperm does not show xerophytic character.
B. In Cycas , coralloid roots are associated with fungi.
C. All gymnosperms are heterosporous.
D. In conifers , needle - like leaves reduce the surface area.
How many above statement are correct ?

A

A, B and C

B

B, C and D

C

C and D

D

A and D

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, we need to analyze each statement about gymnosperms and determine which ones are correct. ### Step-by-Step Solution: 1. **Statement A: "Gymnosperm does not show xerophytic character."** - This statement is **incorrect**. Gymnosperms, such as conifers, often exhibit xerophytic characteristics, meaning they are adapted to dry environments. They have features like needle-like leaves and thick cuticles to minimize water loss. 2. **Statement B: "In Cycas, coralloid roots are associated with fungi."** - This statement is also **incorrect**. Coralloid roots in Cycas are primarily associated with algae, not fungi. These roots contain a symbiotic relationship with cyanobacteria (blue-green algae), which can fix nitrogen. 3. **Statement C: "All gymnosperms are heterosporous."** - This statement is **correct**. Gymnosperms produce two types of spores: microspores (male) and megaspores (female). This characteristic makes them heterosporous. 4. **Statement D: "In conifers, needle-like leaves reduce the surface area."** - This statement is **correct**. Needle-like leaves do indeed reduce the surface area exposed to the environment, which helps to minimize water loss through transpiration. Additionally, these leaves are adapted to withstand extreme environmental conditions. ### Conclusion: - From the analysis, we find that: - Statement A: Incorrect - Statement B: Incorrect - Statement C: Correct - Statement D: Correct Thus, the number of correct statements is **2** (C and D). ### Final Answer: **2 statements are correct (C and D).** ---
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