The scientist hypothesized that the mold must be producing a chemical that killed the bacteria. he decided to isolate this substance and test it to see if it would kill bacteria. he transferred the mold to a nutrient broth solution. this solution contained all the materials the mold needed to grow. after the mold grew, he removed it from the nutrient broth and then added the broth to a culture of bacteria. he observed that the bacteria in the culture died. his experiments were later used to develop antibiotics.
were his observations qualitative data or quantitative data?

osteogenesis imperfecta (oi) refers to a congenital ailment of bones. in the condition, the bones become brittle or fragile. this ailment is a general result of the defect or mutations in the genes (colia1 or colia2). this mutation results in imperfect collagen formation either in quantity or quality wise.  

there are eight kinds of oi defects, and each kind varies with certain distinctions in symptoms. the usual symptoms include frequent bone fractures, loss of hearing in infants, protruding eyes, discoloration of the white in the eyes, respiratory issues, loosening of the joints, short stature, and other symptoms.  

what are the options