$5-$Kingdom classification was proposed by:

Why are bats not placed in birds?

The book $Systema \text{ } Naturae$ was written by:

Is the given figure of an angiosperm plant a dicot or a monocot? Differentiate between dicot and monocot plants on the basis of venation in the leaf and the number of cotyledons in the seed.

$(a)$ What are saprophytes?
$(b)$ Name the kingdom to which they belong.
$(c)$ What is the cell wall of fungi made-up of?

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.