Your skin has 3 layers. The top layer is called the epidermis. The middle layer is called the dermis. The bottom layer is called the subcutaneous fat.
B. The Hubble Space Telescope
Other organisms such as an autotroph
The answer is; negative…positive
In a closed circuit, electrons move from the negative node to the positive node. Electric current, on the other hand, flows from the positive node to the negative node. The flow of electrons and electric current is measured in amperes (A).