Classification of Living things: Is the sorting/ grouping/arranging of living things (in groups); according to their common/similar characteristics/features/shared qualities.
(ii) The scientist who developed the Binomial system of classification: Carl/Carolus Linnaeus/Linnaeous
(iii) Reasons for classification of living things

To put every lying organism into a systematic order/ specific group
for easy identification of similar living things
to indicate/Show the relationships between different categories of living organisms
to show evolutionary trends in different groups of living organisms
to trace geographical distribution of living organisms
for easy reference
for easy research/study.

(iv) Classification of ranks in order of hierarchy
Kingdom
Phylum/Division
Cass Order
Family
Genus
Species.
Features of Viruses as (i) living things (ii) nonliving things
(i) Living things

has protoplasm/protein coat/membrane
contain DNA/RNA/Nucleic acid

(ii) Non-living things

appear as crystals
lack of organelles

(c) Viral diseases of:(i) Plants:

Cassava mosaic disease
Bean mosaic diseases
cacao swollen shoot disease
Groundnut rosette
maize streak
cucumber mosaic
any correctly named disease.

(ii) Humans;

poliomyelitis/polio
chicken pox
mumps
measles
influenza/flu
AIDS
Ebola disease
infective hepatitis
Lassa fever
Avian influenza (Bird flu)
Swine flu (Bovine flu)
Rabies
Zika
any correctly named disease.