Organisms serve different roles in ecosystems based on how they obtain nutrients. what important role is served by fungi in ecosystems?

~~16. while watching a special on animals, brianna discovers that hares tend to lose heat through their ears. based on this and what is known about surface-to-volume ratios, propose an explanation as to why hares that live in hot climates (such as the desert) have large, extended ears

Can someone i have no idea of how to do this.

Which diagram best represents the chromosomes that would be found in a two new skin cells produced as a result of this process?