Which of the following plants does not exhibit a haplo-diplontic life cycle?

What is common among $Porphyra$,$Agaricus$,$Chlorella$,and $Spirulina$?

Thick-walled resistant zygote can be produced in the life cycle of:

The gametophytic plant body is nonvascular in which of the following?

Mention the ploidy of the following: protonemal cell of a moss; primary endosperm nucleus in a dicot; leaf cell of a moss; prothallus cell of a fern; gemma cell in Marchantia; meristem cell of a monocot; ovum of a liverwort; and zygote of a fern.

Match the items in Column $I$ with those in Column $II$:

Column $I$	Column $II$
$(A)$ Peritrichous flagellation	$(J)$ $Ginkgo$
$(B)$ Living fossil	$(K)$ $Macrocystis$
$(C)$ Rhizophore	$(L)$ $Escherichia \text{ } coli$
$(D)$ Smallest flowering plant	$(N)$ $Wolffia$
$(E)$ Largest perennial alga	$(M)$ $Selaginella$

Select the correct answer from the following: