The "hotter" the final color of the reagent, the higher the concentration of reducing sugar. In general, blue to blue-green or yellow-green is negative, yellowish to bright yellow is a moderate positive, and bright orange is a very strong positive.
Answer:
Question 1 : 1,3,2
Question 3: Not visible
Question 10: Disruptive Selection
Question 11: Animals have smaller ears to conserve body heat and plants have spines instead of leaves to reduce water loss.
Question 12: A trait that benefits an organism's ability to survive and reproduce