Legumes incorporate nitrogen gas into their proteins because
of the presence of Azotobacter in their roots
they possess root nodules containing Rhizobium
they have a well developed root system
they are autotrophic
Correct answer is B
No explanation has been provided for this answer.
Forest conservation includes the following except
preventing bushfires
extensive tree felling
replacing harvested trees by planting seedlings
selective exploitation of forest trees
Correct answer is B
No explanation has been provided for this answer.
Renewable resources are formed by
animals that reproduce sexually
organisms confined to forest reserves
organisms that are constantly regenerating themselves
plants and animals that can reproduce sexually
Correct answer is C
No explanation has been provided for this answer.
Viruses are agents of the following diseases except
measles
smallpox
poliomyelitis
tuberculosis
Correct answer is D
No explanation has been provided for this answer.
Rabbits cannot survive in an aquatic environment because they have
fore and hind limbs
no gills
no fins
no scales
Correct answer is B
No explanation has been provided for this answer.