Which statements describe characteristics that are common to both gymnosperms and angiosperms? Check all that apply. They have roots, stems, and leaves for nutrient transport.
They have flowers.
They are autotrophs.
They rely on diffusion for nutrient transport.
They are heterotrophs.
They have seeds.

What is the significance of the protein-lined pits? a. protein attracts other proteins needed for atp synthesis within the cell. b. protein-lined pits are able to transport one molecule at a time down the concentration gradient within the cell. c. the polarity of proteins allows other polar molecules to attach and be transported in the cell by transport channels. d. receptors within the pits allow ligands to fuse and be transported into the cell by endocytosis.