Answer:
D) He reorganized life into five kingdoms.
Explanation:
Whittaker proposed an elaborate five kingdom classification – Monera, Protista, Fungi, Plantae and Animalia. The main criteria of the five kingdom classification were cell structure, body organisation, mode of nutrition and reproduction, and phylogenetic relationships. ... They reproduce both asexually and sexually.
Explanation:
I think the age of exploration or the cold war
He worked as a president in united states