Answer: Saturated fats
Explanation: When you eat food that contains high levels of saturated fats, your liver produces more cholesterol.
B. Old Stone Age.........................
Kirby Bauer disk technique is a method to determine sensitivity of microorganisms yo antimicrobial drugs. The greater the efficacy of the chemical the larger zone of inhibition on around the drug containing disks at lowest concentration possible or the minimum inhibitory concentration. If the chemical found on the skin of frogs produce a large zone of inhibition at a very low concentration of the drug this can be a good antibiotic.
B. Placenta (works with the umbilical cord to provide nutrients to the developing human)!
Myopia (i think) sorry if this is wrong