Related Questions

From 1993 to 2007, the contribution of the adolescent fertility rate to the total fertility rate increased by ______ . 
A around 3%
B 4%
C slightly more than 4%
D 5%
Which of the following enhances soil fertility?
A Crop rotation
B Improved methods of agriculture
C Using new seed varieties
D Irrigation
Which one of the following is the correct sequence of crop rotation with a view to increasing soil fertility?
A Wheat, Potato, Barley, Pea
B Potato, Wheat, Pea, Barley
C Barley, Pea, Wheat, Potato
D Pea, Barley, Wheat, Potato
Fertility of soil can be improved by ________
A Adding living earthworms
B Adding dead earthworms
C Removing dead earthworms
D Removing living earthworms and adding dead earthworms
Which of the following bacterium causes crown gall disease in plants?
A Bacillus thurigiensis
B Agrobacterium tumefaciens
C Pseudomonas fluorescens
D None of these
Which one of the following is a Bacterium that causes disease in the human body?
A Varicella zoster
B Trypanosoma gambiense
C Salmonella typhi
D Plasmodium falciparum
May physician has told me that stomach ulcres are "not caused by stress ,alcohol,or rich foods" but a bacterium that dwells in the mucous lining of the stomach.(Match the best alternative that correspond to the quotations word)
A Not caused by stress ,alchol, or rich foods, but
B Not caused by stress ,alchol, or rich foods or but
C Caused not by stress,alchol,or rich foods but by
D Caused not by stress,alcohol and rich foods but
The DNA of the bacterium is found present in a distinct nuclear region called
A Nucleolus
B Centrosome
C Nucleoid
D Nucleus
The DNA bacterium consists of ring-like pieces known as the
A Plasmids
B Genes
C Chromosomes
D Mesosomes
The commonest bacterium found in a wound abscess is 
A Staphylococcus aureus
B Streptococcus pyogenes
C Pseudomonas aeruginosa
D Bacteroides

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