1. Cactus Fruit, Flowering Plants
2. Rattlesnake (show in image as secondary, sorry) Small Mammals, Insects
3. Lizards, Scorpions
4. If a farmer shoots all the rattle snakes in the area, it would effect the food chain much, much more than if he killed all the insects as all 3 of the top predators rely on it as well as lizards as food.
5. If a plant makes seeds that stick to a coyotes fur, and the coyote carries it, the relationship is commensalism as the plant benefits from its population being spread, while the coyote is unaffected.
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