Answer: The plant would die and the process that would be affected is photosynthesis.
Step-by-step explanation:
Lycophyte are green plants that make food by the help of the process known as photosynthesis. Green plants are known as producers that make their own food.
There are many process that will be affected in a plant if all the leaves are removed from it. Photosynthesis in addition with respiration, transpiration and many more processes will be affected.
So, the correct answer is photosynthesis will be affect primarily followed by many other processes.