Question

Corey steps on a tack that pierces the skin of his foot. In what order would the tack go through the layers of the skin?

first the dermis, then the hypodermis, and then the epidermis
first the hypodermis, then the dermis, and then the epidermis
first the epidermis, then the hypodermis, and then the dermis
first the epidermis, then the dermis, and then the hypodermis

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Answer 1

Answer: First the epidermis, then the dermis, and then the hypodermis

Explanation: The skin has three layers, which are:

(1) The epidermis (the outer layer, which we see)

(2) Followed by the dermis, which is immediately below the epidermis.

(3) Lastly the hypodermis, the innermost layer.

When Corey steps on the tack, the tack will pierce through his foot from the outermost to the innermost layer i.e. in (1), (2) and (3) order.

Hence: (d) is correct.