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 categories of animals, is correctly described with no single exception in it?

Which one of the following pairs of animals are similar to each other pertaining to the feature stated against them?

Read the following five statements (A - E) and answer as asked next to them.
(A)   In Equisetum, the female gametophyte is retained on the parent sporophyte.
(B)   In Ginkgo, male gametophyte is not independent.
(C)   The sporophyte in Riccia is more developed than that in Polytrichum.
(D)   Sexual reproduction in Volvox is isogamous.
(E)   The spores of slime moulds lack cell walls.

How many of the above statements are correct?