Cycads, conifers and flowering plants are all considered to be
a. vascular seed-forming plants.
b. vascular spore-forming plants.
c. non-vascular seed-forming plants.
d. non-vascular spore-forming plants.

structure is maintained and sustained by:

-cytoskeleton: gives cells coherence

-cell wall: support

-cytoplasm: shape

hope this .

affects the water bodies: excessive use of fertilizers causes eutrophication. the fertilizers which are used on plants affect the quality of land on which it is used, further causing erosion of soil. the fertilizers used on plants contain harmful chemical fumes which affect the environment.