Who is known as the "Father of Zoology"?

Plants growing on sandstone are known as:

Petroleum is derived from the words 'Petra' meaning rock and 'Oleum' meaning oil. The words 'Petra' and 'Oleum' are:

Which one of the following criteria is/are essential and form the basis of modern taxonomic studies?

Tectonic is the study of

Assertion $(A)$: Theophrastus classified plants into four groups based on their habit.
Reason $(R)$: This Greek naturalist is known as the Father of Botany.