The last time Nancy’s remote control stopped working, he change the batteries and then it worked fine it stopped working again, so she changed The batteries again without noticing that a book was obstructing the sensor of her TV. what type of obstacle to problem solving is this ? A:functional fixedness
B:mental set
C:misleading information
D:conformation bias

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).

the answer is the first electromagnet (a). this is because it has more coils around the ferromagnetic material. increasing the number of coils increases the surface area in which the metal interacts with the current in the coil. this enables more atoms in the metal to become aligned hence becoming more magnetized.