Match each interaction with its example. commensalism mutualism parasitism competition Giardia lamblia, a microorganism, invades the cells of the small intestine in humans, absorbs nutrients, and causes diarrhea in its host. arrowRight Ants protect aphids from their predators, ladybugs, in return for honeydew. arrowRight Two species of grass in an ecosystem require water and the same nutrients. arrowRight A barnacle attaches to a whale for transport, but does not affect the whale. arrowRight