Please help me. (Photo) (you only have to do 3 and 4) (short questions)

Which best summarizes the finding of avery? a. some traits are recessive. b. humans reproduce sexually. c. dna is a transforming factor. d. traits cannot be inherited.

Complete the following statements about the functions of the digestive system. carbohydrates and fats are digested in secretes enzymes that aid in the digestion of carbohydrates, fats, and proteins. the secretes bile; bile is stored in undigested food is processed into feces in feces is then stored in until it is eliminated from the body via

Iron reacts with oxygen to produce iron oxide (rust). this reaction is represented in an equation as 4fe + xo2 → 2fe2o3. identify the value of x that will balance the equation.