Biology crossword! Help Needed!?

Question

15. a rootlike structure in nonvascular plants, such as mosses or liverworts, that holds the plants in place and aids in absorption.(7 letters)(3rd letter is an i)
6. an asexual spore produced in certain fungi(8 letters)(2nd letter an o, 5th letter a d, 8th letter a m)
12. a mass of cells formed by a fungus in symbiosiswith a photosynthetic partner(6 letters)
3. a carbohydrate that forms part of the exoskeleton of arthropods and other organisms, suck as insects, crustaceans, fungi, and some algae(6 letters)

Answer 1

12-lichen
3- chitin
15-rhizome
6- conidial