Asubstance that is dissolved in another substance is which of the following 1) saturation 2) solubility 3) solute 4) solvent

Surrounded by microtubules, located near the nucleus. (don't try to google it) (give answer only if u know)

How are the reproductive cycles of a fungus and a pteridophyte similar? a)both organisms form fruiting bodies that produce diploid seeds. b)both organisms produce haploid spores and exhibit diploid and haploid stages. c)both organisms reproduce sexually when two haploid hyphae fuse. d)both organisms exhibit a diploid stage and are only able to reproduce asexually.

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?