Final answer:
The student's question involves matching organisms to statements about their roles in an ecosystem. Plants convert light to chemical energy and are at the base of the trophic pyramid, so they have the most energy. Organisms like snakes have the least energy as they are higher up the pyramid.
Step-by-step explanation:
To answer the student's question, let's match each item to the appropriate statement based on the concepts of photosynthesis, energy flow in ecosystems, and the trophic levels.
- Plant (b) matches with 'Which converts light energy to chemical energy?' (1) because plants perform photosynthesis.
- Snake (e) matches with 'Among the animals, which will have the least energy?' (2) since it's a higher-level consumer and energy is lost at each trophic level.
- Insect (c) matches with 'Which is the secondary consumer?' (3) as some insects feed on primary consumers like plants.
- Plant (b) also matches with 'Which is herbivore?' (4) because plants are primary producers, not herbivores. This might be a typo in the question, and the likely answer they're seeking is probably 'Rat' (a) or 'Mice' (d) if one of them eats plants.
- Plant (b) matches with 'Which organism will have the greatest energy?' (5) as producers have the most energy in an ecosystem.
In summary, plants convert light energy to chemical energy during photosynthesis and form the base of the energy pyramid, having the greatest energy. Organisms higher up in the trophic levels, like snakes, will have the least energy due to energy loss at each level.