Which two characteristics do all flowering plants have in common? O A. They produce seeds.
O B. They produce cones.
C. They have vessels.
O D. They lack roots.

2. what two items do autotrophs take from the environment to produce their food? 3. what are the two items that are released during transpiration from leaves? 4. what are the two membranes of the system? a.what are the two stages of photosynthesis? what are the two parts of photosynthesis?