Question

1. choose the best answer. what is the epidermis mostly made out of? mitochondria dead skin cells living skin cells chloroplasts 2) select all that apply. which three things make up the skin? the dermis blood vessels the epidermis a layer of fat beneath the layers

Explanation:

1. The outermost layer of the skin, the epidermis, is mostly composed of dead skin cells which are constantly shed and replaced. Mitochondria are organelles within cells, not the main component of the epidermis. Living skin cells are present in deeper layers of the epidermis but not the majority. Chloroplasts are found in plant cells, not in human skin.
2. The skin is composed of three main parts: the epidermis (the outermost layer), the dermis (the middle layer containing blood - vessels, nerves etc.), and a layer of fat beneath the layers (hypodermis) which provides insulation and padding. Blood vessels are within the dermis but are not one of the three main structural components of the skin on their own.

Answer:

1. B. dead skin cells
2. A. the dermis, C. the epidermis, D. a layer of fat beneath the layers