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Read the given passage. Pteridophytes...

Read the given passage.
Pteridophytes are the first plants with X tissue but they lack Y and Z in this tissue system. The dominant plant body is P which bears sporangia that can be either Q or R. Select the option that correctly identifies any three of these variables

A

P-Gametophyte, Q-Female, R-Male

B

X-Vascular, Y-Tracheids, Z-Vessels

C

P-Sporophyte, Q-Homosporous, R- Heterosporous

D

X-Meristematic, Y-Xylem, Z-Phloem

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, we need to identify the variables X, Y, Z, P, Q, and R based on the information provided in the passage about Pteridophytes. Let's break it down step by step. ### Step-by-Step Solution: 1. **Identify X**: - The passage states that Pteridophytes are the first plants with a certain type of tissue. This tissue is known as "vascular tissue." - **X = Vascular tissue** 2. **Identify Y and Z**: - The passage mentions that Pteridophytes lack two types of structures in this tissue system. The two structures that vascular plants typically have but Pteridophytes lack are "seeds" and "flowers." - **Y = Seeds** - **Z = Flowers** 3. **Identify P**: - The passage refers to the dominant plant body in Pteridophytes, which is known as the "sporophyte." - **P = Sporophyte** 4. **Identify Q and R**: - The passage mentions that the sporangia can be of two types. These types are "homosporous" (producing spores of one kind) and "heterosporous" (producing spores of two different kinds). - **Q = Homosporous** - **R = Heterosporous** ### Final Identification: - **X = Vascular tissue** - **Y = Seeds** - **Z = Flowers** - **P = Sporophyte** - **Q = Homosporous** - **R = Heterosporous** ### Conclusion: The option that correctly identifies any three of these variables is: - **X = Vascular tissue** - **Y = Seeds** - **Z = Flowers** - **P = Sporophyte** - **Q = Homosporous** - **R = Heterosporous**
To solve the question, we need to identify the variables X, Y, Z, P, Q, and R based on the information provided in the passage about Pteridophytes. Let's break it down step by step. ### Step-by-Step Solution: 1. **Identify X**: - The passage states that Pteridophytes are the first plants with a certain type of tissue. This tissue is known as "vascular tissue." - **X = Vascular tissue** ...
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