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A Biology questions and answers best for biology students and those who are interested in learning biology. You got three (3) minutes to attempt all the 15 questions. You can check your score and the correct answers from the button below. Please post your score in the comment box below.

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You might want to check Biology question set 007 Biology question set 005 1. It is known that a lactating mother may suffer from the weakning of teeth and bone. Which vitamin and minerals would she need to correct this condition ?
vitamin K, iodine and phosphorus
vitamin C, phosphorus and calcium
vitamin A, calcium and iron
vitamin D, phosphorus and calcium

2. The organism in a food chain that releases materials for re-use by green plants is called
decomposer
secondary consumer
primary consumer
primary producer

3. Green plants produce less carbon dioxide during the day because
the rate of respiration is low during the day
some of the carbon dioxide produced is used up internally for photosynthesis
transpiration interfere with carbon dioxide evolution by leaves
most stomata close due to strong heat during the day

4. Which one of the following is the correct order of arrangement from the smallest to the largest group of organisms?
species, orde, genus, class, phylum
species, class, order genus, phylum
species, class, order, phylum, genus
species, genus, order, class, phylum

5. Which of the following methods would best determine the rate of growth of a seedling?
length of radicle and fresh weight
diameter of radicle and dry weight
length of radicle and dry weight
diameter of radicle and fresh weight

6. What would happen if a ligament broke?
muscles would be detached from bone
muscle pull would result
there would be dislocation of bones during movement
synovial fluid would leak out from a synovial membrane

7. Which of these characters is an example of continous variation in man?
skin colour
albinism
dwafism
blood group

8. The element that is essential for the formation of both plant cell wall and bone in animals is
iron
calcium
phosphorus
sulphur

9. In favorable conditions, yeast reproduce by
fragmentation
conjugation
sporulation
budding

10. Which one of the following protozoa has cilia?
amoeba
euglena
paramecium
plasmodium

11. The kidneys purify blood by
ultra filtration
absorption and filtration
selective absorption and filtration
ultra filtration and selective re-absorption

12. Which vessel empties fat into the right atrium of the mammalian heart?
posterior vena cava
anterior vena cava
palmonary vein
palmonary artery

13. Which one of these insects does not lay eggs in its life cycle?
bee
grasshopper
tsetse fly
house fly

14. Which one of these is not a mean of movement in protozoa?
coeclom
flagella
cilia
pseudopodia

15. The type of soil with minute airspaces and high water retention capacity is
sand
clay
silt
loam

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