Medical Entrance Exam

Pneumatophores occur in Option 1 :Halophytes Option 2 :Carnivorous plants Option 3 :Free-floating hydrophytes Option 4 :Submerged hydrophytes Correct option is Option 1.

Which of the following statements is correct? Option 1 Horsetails are gymnosperms Option 2 Ovules are not enclosed by ovary wall in gymnosperms Option 3 Selaginella is heterosporous, while Salvinia is homosporous Option 4 Stems are usually unbranched in both Cycas and Cedrus Option 2 is correct