Question

Match List I with List II :

List I                       List II
A. Productivity              I. Gross primary productivity minus respiration losses
B. Net primary productivity  II. Rate of formation of new organic matter by consumers
C. Gross primary productivity III. Rate of biomass production
D. Secondary productivity    IV. Rate of production of organic matter during photosynthesis

Choose the correct answer from the options given below :

• A. A-I, B-III, C-II, D-IV
• B. A-IV, B-II, C-I, D-III
• C. A-II, B-IV, C-I, D-III
• D. A-III, B-I, C-IV, D-II

Hint:

Use mnemonics! Marginal Pea (Map), Axile China Tomato Lemon (ACTL), Parietal Mustard Argemone (PMA), Basal Sunflower Marigold (BSM).

Answer 1

The Correct Option is C

Step 1 : Understanding the Question
Match placentation types with their respective examples.
Step 2 : Key Formulas and approach
Recall the arrangement of ovules in Pea, Lemon, Mustard, and Marigold.
Step 3 : Detailed Explanation

Marginal (A): Ridge-like attachment seen in (A) Pea. (A-II).

Axile (B): Central axial attachment seen in (B) Lemon. (B-IV).

Parietal (C): Peripheral wall attachment seen in (C) Mustard. (C-I).

Basal (D): Base attachment seen in (D) Marigold. (D-III).

Step 4 : Final Answer
Match is A-II, B-IV, C-I, D-III. Option (A) is correct.