Taxonomic hierarchy includes seven obligate categories which are as follows:- (i) Kingdom, (ii) Phylum or Division, (iii) Class, (iv) Order, (v) Family, (vi) Genus, (vii) Species. In classification, several steps are involved where every step shows a specific category called a taxon. Each taxon is represented as a unit of classification.
If we talk about growth then in case of unicellular organisms like Amoeba, bacteria or unicellular algae, reproduction is synonymous with growth which simply means increase in the number of cells. Therefore, all the given statements are true.

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