Many schools in the Caribbean serve fish as a source of protein (i) Describe the digestion of proteins
(ii) How does the structure of the villi assist with the utilization of the digested fish

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line