State the type of body cavity found in Platyhelminthes. Write whether they are parasitic or free-living.

State reasons for the following:
$(a)$ Bryophytes are called amphibians of the plant kingdom.
$(b)$ Gymnosperms are called so (naked-seeded plants).
$(c)$ Birds have wings and feathers.

Fill in the blanks:
$(a)$ Five kingdom classification of living organisms is given by ..............
$(b)$ Basic smallest unit of classification is .............
$(c)$ Prokaryotes are grouped in Kingdom ...............
$(d)$ Paramecium is a protista because of its ...............
$(e)$ Fungi do not contain .............
$(f)$ $A$ fungus ............. can be seen without microscope.
$(g)$ Common fungi used in preparing the bread is ...............
$(h)$ Algae and fungi form symbiotic association called ...........

How many chambers are present in the heart of fishes and frogs?

Differentiate between the following (any one point):
$(a)$ Diploblastic and triploblastic animals
$(b)$ Warm-blooded and cold-blooded animals

Identify a member of the phylum Porifera.