Based on its chemical formula, which of the following substances is an organic compound?

Which of the following terms describe a liquid molecule that has only single bonds between its carbon atoms

Which process is involved in growing crops? irrigation transportation recreation condensation

In addition to seeds, which of the following characteristics are unique to the seed-producing plants? a) sporopollenin b) lignin present in cell walls c) pollen d) use of air currents as a dispersal agent e) megaphylls