Which of the following fixes atmospheric nitrogen?
Rhizobium
Nitrosomonas
Nitrobacter
Putrefying bacteria
Denitrifying bacteria
Correct answer is A
No explanation has been provided for this answer.
Group instinct or social behaviour is not displayed in
soldier ants
bees
chickens
weaver birds
termites
Correct answer is C
No explanation has been provided for this answer.
One of the methods of preventing measles is by
sleeping under mosquito net
attacking the vectors
attacking the secondary host
vaccinating young children
providing clean water supply
Correct answer is D
No explanation has been provided for this answer.
adaptive radiation
continuous variation
a common origin
convergent evolution
adaptation to the same environment
Correct answer is C
No explanation has been provided for this answer.
The evidence for evolution can be obtained from the following except
fossil
anatomy
history
embryology
taxonomy
Correct answer is C
No explanation has been provided for this answer.