Answer:
An opportunist takes advantage of an opportunity. Sensation is Tangible able to be seen or touched; material. Specialization means go back to a less developed time/condition. Hypothesis is a theory used in research. Vacuous means empty; lack of intelligence. Absurd means ridiculous; unreasonable. Syndrome means examining your thoughts and feelings. Regression means symptoms used to describe a disease.
Explanation: I did these words in first grade.
