When a zebra eats grass it does not obtain all of the what that the grass has?

When a zebra eats grass, it does not obtain all of the nutrients that the grass contains. This is due to the digestive system of the zebra, which may not efficiently break down all the plant material, leading to the loss of certain vitamins, minerals, and other essential compounds. Additionally, some nutrients may be bound in ways that are not accessible to the zebra's digestive enzymes. As a result, while the zebra benefits from the grass, it does not extract every potential nutrient from its diet.