Terroists have become more powerful over the years
Answer:
trigonometry, algebra, arithmetic and negative numbers
<span> he came to demonstrate the working of a process that was clearly psychological which caused a change in the digestive system.
This finding lead to the discovery on how a change in organisms' psychological condition could influence our normal biological function, such as tendency to become constipated when we're stress, increased response when we're anxious,etc.</span>
