Name the phylum to which Leech and Earthworm belong.

Match items of column $(A)$ with items of column $(B)$:

Column $(A)$	Column $(B)$
$(a)$ Naked seed	$(A)$ Angiosperms
$(b)$ Covered seed	$(B)$ Gymnosperms
$(c)$ Flagella	$(C)$ Bryophytes
$(d)$ Marchantia	$(D)$ Euglena
$(e)$ Marsilea	$(E)$ Thallophyta
$(f)$ Cladophora	$(F)$ Pteridophyta
$(g)$ Penicillium	$(G)$ Fungi

The book 'Systema Naturae' was written by

Write one difference for each of the following pairs:
$(i)$ Thallophyta and Bryophyta
$(ii)$ Nematoda and Annelida
$(iii)$ Amphibia and Reptilia

Name the five classes of vertebrates. Compare any two on the basis of their $(i)$ Habitat,$(ii)$ Covering of skin,$(iii)$ Respiratory organs,$(iv)$ Chambers of heart,and $(v)$ Reproduction.

Identify the animal and plant groups having:
$(a)$ Animals without tissues,body bearing pores.
$(b)$ Plant body differentiated into roots,stems and leaves but do not produce seeds.
$(c)$ Body dorsoventrally flattened without coelom.
$(d)$ Segmented worms with true body cavity with extensive organ differentiation.