All organisms that are similar enough to breed and perpetuate are called

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.

$(a)$ Give a difference between lizards and snakes.
$(b)$ Name the type of nutrition in fungi.

Enlist four main features of organisms placed in the kingdom Protista.

Pteridophyta do not have

Homo sapiens is the scientific name of human beings. What do these two terms imply?