Choose the required noun form the the ones given and use it in the necessary meaning: alga, algae, vertebrae, vertebra, formula, formulae, larva, larvae.
 1 . in is very interesting to study the respiratory system of the mayfly .
 2. clothes moth feed on wool, hair, feathers, fur, dried hair and leather.
 3. during pupation the silk moth undergoes complete metamorphosis. 
 4. the young scientist has been looking for almost a decade for a mathematical that will become the basis for the creation of a universally applicable model.
 5. what is the of the chlorofluorocarbon acid? 
 6. there are many relating the sides and angles of a spherical triangle. 
 7. some blue - green sea can produce poison acids. 
 8. take 3 capsules a day of this detoxifying , it will do you good.
 9. the old man broke his and hand in a car accident. 
 10. a is any of the bones or segments composing the spinal column.