The question is asking us to identify the incorrect pairing among the given options.

Option 1 states that positively phototropic is matched with the shoot. Phototropism refers to the growth or movement of an organism in response to light. In this case, shoots are positively phototropic because they grow towards a source of light. Therefore, this pairing is correct.

Option 2 states that positively geotropic is matched with the root. Geotropism refers to the growth or movement of an organism in response to gravity. Roots are positively geotropic because they grow towards the force of gravity, anchoring the plant in the soil. Therefore, this pairing is also correct.

Option 3 states that chemotropic is matched with the pollen tube. Chemotropism refers to the growth or movement of an organism in response to chemicals. In the case of pollen tubes, they exhibit positive chemotropism as they grow towards chemicals released by the ovules to reach them for fertilization. Therefore, this pairing is also correct.

Option 4 states that hydrotropic is matched with the flower. Hydrotropism refers to the growth or movement of an organism in response to water. Flowers do not exhibit hydrotropism as they are mostly dependent on other factors