Which one of the following biomolecules is correctly characterized?

How many plants in the list given below have marginal placentation?
Mustard, Gram, Tulip, Asparagus, Arhar, Sun hemp, Chilli, Colchicum, Onion, Moong, Pea, Tobacco, Lupin

Which one of the following organisms is correctly matched with its three characteristic?

Which one of the following categories of animals, is correctly described with no single exception in it?