An internal cost is a cost that is required to be able to produce a good and that have to be taken into account when establishing the price of the product. From the options given, the internal cost is the cost of employees (labor) as they perform the jobs necessary to manufacture the products that are sold by the company.
The other options are external costs that are cost that are not included in the price of the product but that have to be paid like contamination and the disposal of the product after its use.
Within the cell body is a nucleus (2), which controls the cell's activities and contains the cell's genetic material. The axon looks like a long tail and transmits messages from the cell
