The answer is "the ice-caps" from the north and south pole.
Answer:
exposed ovules
Explanation:
Gymnosperms are a type of flowerless plant that tend to produce cones and seeds. This is why the name refers to "naked seed", seeing since the gymnosperm seeds are not positioned within an ovary. Therefore the presence of exposed ovules or the structure that contains the seeds in a place would immediately indicate that this is, in fact, a gymnosperm.
It's a mutualism relationship because both species can benefit from each other.
A group of cells working together to do a job are called tissue