Plant alkaloids are chemotherapy treatments derived made from certain types of plants. The vinca alkaloids are made from the periwinkle plant (catharanthus rosea). The taxanes are made from the bark of the Pacific Yew tree (taxus). The vinca alkaloids and taxanes are also known as antimicrotubule agents.
Psychologists' focus shifted away from the study of cognition in the 1920s-1950s (early 20th century) and back toward it in the mid 20th century.
In the early 19th century, psychology was becoming a scientific discipline. Behaviorism was the focus until mid 20th century. During this this time, Cognitive psychology was shaped as a formal school of thought. Although, the study of human cognition started over two thousand years ago with Aristotle.
Answer:
magnets counteract eachother when postioned oppositly
Explanation:
Explanation:
Brain cells. this is your answer hope it will help you
