Leg bones
• long and skinny
Skull bones
• thin and wide
Many skull bones are carved. Leg bones enable walking and standing. While skull bones are designed to protect the brain.
Answer: Rosalind Franklin
Franklin created an x-ray photograph that allowed Watson and Crick to work out the 3D structure of DNA.
300 BC by Greek philosophers
Hypothesis could be tested by actually doing them to see if it works or not...