How might an individual lose their sight or their hearing but not have direct damage to their eyes or ears

Explain why phospholipid molecules form a bilayer. (3 marks)

All individuals have two alleles for a given trait. according to mendel's these alleles are passed down one each from both mother and father.

Students in biology are studying the macromolecules of life. they used a calorimeter to determine the calories in various types of food. once the lab was completed, the students ate the left over food samples. monica commented that in just 6 or 7 "chews" of the saltine, it was gone; nothing but a sticky paste in her mouth. elaborate on what happened chemically while chewing the saltine. include the macromolecules present.