Explain what is the optimum temperature for catalyses?
what is hyperdynamic shock?? give some examples??
Explain how much salt is in the human body?
Explain how does the structure of a crab relate to its habitat?
why do we sneeze? is there any relation between the 'random sneezing' and our brain?does our brain control this involuntary action?
which is the largest uranium producing country.
How is pipette used?
Why mosquito bites?
What does acute disease mean?
Explain why do organisms live in certain places?
What is a florence flask?
what is artherosclerosis?
What is a burette?