Both of these birds were originally the same species. Overtime, however, the two birds began to live in different environments and eat different types of food. What were these changes in beak and feather color caused by? 1.Mutations

2.Variations

3.Clones

4.Extinctions

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.

i dont have a visual in front of me, but i can you reason to try to get the right one. the graph should look like this, 0 to 6 there is a spike, 12 to 14 there should be a very low point. slight increase in the graph at 12 to 14, and flat 14 to 18

explanation: