All the statements are true of herbivores except that they are sometimes predators.
Explanation;
-Herbivores are animals that gets its energy from eating plants, and only plants. Many herbivores have special digestive systems that let them digest all kinds of plants, including grasses.
-Herbivores form an important link in the food chain because they consume plants in order to digest the carbohydrates photosynthetically produced by a plant. Carnivores in turn consume herbivores for the same reason, while omnivores can obtain their nutrients from either plants or animals.
I guess there should options to choose. Anyway I've found your questions with provided options. So correct answer is: All the statements are true of herbivores except that they are <span>sometimes predators</span>.