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

Which among the following have scales?
$(i)$ Amphibians
$(ii)$ Pisces
$(iii)$ Reptiles
$(iv)$ Mammals

Give the appropriate term for each of the following:
$(a)$ Complex sugar that makes the fungal cell wall
$(b)$ Exposed seeds
$(c)$ Blue-green algae
$(d)$ Basic unit of classification
$(e)$ Group of unicellular eukaryotic organisms

On the basis of the following features,identify the group and give one example of each:
$(i)$ Presence of notochord at some stage of life.
$(ii)$ Unicellular,microscopic,and eukaryotic.
$(iii)$ Seeds are enclosed in fruits.

The skeleton is made entirely of cartilage in

Who introduced the system of scientific nomenclature of organisms?