Question
Identify labels A, B, C, D.



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| Column A (Scientist) | Column B (Theory) |
| (1) Dixon and Joly | (a) Starch-sugar inter conversion |
| (2) Steward | (b) Osmotic absorption theory |
| (3) Atkins and Pristley | (c) Non-osmotic absorption theory |
| (4) Kramer and Thimann | (d) Cohesion tension theory |
| Column A | Column B |
| (1) Walter Rosen | (a) Popularisation of term biodiversity |
| (2) David Tillman | (b) Rivet Popper Hypothesis |
| (3) Paul Ehrlich | (c) Productivity Stability Hypothesis |
| (4) Edward Wilson | (d) Coined |