Name the phylum to which Leech and Earthworm belong.

Organisms without a nucleus and cell organelles belong to:
$(i)$ Fungi
$(ii)$ Protista
$(iii)$ Cyanobacteria
$(iv)$ Archaebacteria

Name two plants for each of the following types:
$(i)$ Vascular cryptogams
$(ii)$ Naked seeded plants
$(iii)$ Flowering plants

Match the items of Column $(A)$ with the items of Column $(B)$:

Column $(A)$	Column $(B)$
$(a)$ Pore bearing animals	$(A)$ Arthropoda
$(b)$ Diploblastic	$(B)$ Coelenterata
$(c)$ Metameric segmentation	$(C)$ Porifera
$(d)$ Jointed legs	$(D)$ Echinodermata
$(e)$ Soft bodied animals	$(E)$ Mollusca
$(f)$ Spiny skinned animals	$(F)$ Annelida

The cell wall of fungi is made up of chitin.
$(i)$ What is the chemical nature of chitin?
$(ii)$ What is the mode of nutrition in fungi?

Write appropriate terms for the following:
$(i)$ Animals that are able to maintain a constant body temperature over a wide range of environmental temperatures.
$(ii)$ Animals which have a pseudocoelom.
$(iii)$ Plants which bear naked seeds.