Which of the following statements about feeding relationships is correct?

The correct statement about feeding relationships is: "In a food chain on land, green plant is the producer." This means that green plants are the first organism in the food chain, as they are able to produce their own food through photosynthesis. They convert sunlight, water, and carbon dioxide into energy that they use to grow and reproduce. All other organisms in the food chain depend on the green plants for their survival. For example, a herbivorous animal like a rabbit eats the green plant, and a carnivorous animal like a fox eats the rabbit. In this way, energy and nutrients are transferred from one organism to another in a linear fashion, with each organism being eaten by another. In contrast, the other statements contain incorrect information. In the first statement, the grasshopper is portrayed as both a predator and prey, which is not accurate. In the second statement, the term "food web" is used instead of "food chain," which changes the meaning of the statement. In the third statement, mollusc larvae are incorrectly identified as producers, when in fact they are consumers. And in the fourth statement, copepods are portrayed as feeding on both mollusk larvae and sand eel, which is not accurate.