Aboy goes to math class everyday and tries to understand the problems. each day he falls further and further behind the rest of the class as the problems get harder. later in life the boy is afraid of taking math classes and chooses a college major that requires the least amount of math. according to adler what has this boy developed?

How do the uv rays cause damage?   what exactly causes the skin to burn;   can you be more specific about this mechanism?   3. how do photosensitive medications increase a person's sensitivity to sunlight and therefore increase their risk of getting burned?     what kind of medications can increase photo-sensitivity, can you think of some examples?

What condition is most likely present when a normal p wave is negatively deflected?

Which of the following represents a difference between viruses and viroids? a) viruses infect many types of cells, whereas viroids infect only prokaryotic cells.b) viruses have capsids composed of protein, whereas viroids have no capsids.c) viruses have genomes composed of rna, whereas viroids have genomes composed of dna.d) viruses cannot pass through plasmodesmata, whereas viroids can.