Aphids are tiny insects that live on and eat the leaves of plants, removing vital nutrients from the plants.

Mistletoe is a plant that grows in the branches of other plants. It grows by taking nutrients and water from these plants. This is an example of:

This is any close relationship between any two different species in an ecosystem

Both species benefit

One species benefits, the other is unaffected

One species benefits, the other species is harmed

A symbiotic relationship where one species obtains food or benefits from another species without benefitting or harming the other.