Well, experimentation can be really expensive, so when funding is provided it gets rid of a lot of obstacles.
They looked and saw Rosalind Franklin's X-ray crystallography which sparked them to think about the double-helix structure, and from there, they played around with cafeteria items (forks and spoons and whatnot) to create a model that finally worked.
There is still no accurate explanation as to why
the thyroid glands enlarge during goitre. It occurs more frequently in women
than in the opposite sex. They are mostly harmless but it is advisable to see a
doctor once there is a sign of a lump.
Answer:
Carbon
Explanation:
Carbon is the most essential element to make organic compounds found in all organisms.
That's why carbon dating technique is used to know the age of fossils of any organisms.
In Ventilation studies, a radiopharmaceutical is inhaled to obtain a lung scan.