ORGAN
An animal's skin is keratinized epidermal tissue
Muscular tissue. Hope this helps
nucleus and vacule {they are types of cells}
The skin is made up of three main layers of tissue: the epidermis (outer layer), dermis (middle layer), and hypodermis (innermost layer). The epidermis is primarily composed of epithelial tissue, the dermis contains connective tissue, blood vessels, and nerves, and the hypodermis consists of adipose tissue.
Skin or scales
The skin is considered the largest organ in most animals, including humans.
The skin of mammals is made of ectodermal tissue. Its outer layer is the epidermis, and its inner layers are the dermis and the subcutis, also known as the hypodermis.
They take in oxygen and release co2 by their skin, lungs and sometimes tissue in their throats.
Pigs
The tissue that makes up most of your skin is Epithelial tissue.
Frogs
Adipose tissue is deep to the skin; skin is superficial to adipose tissue. Adipose tissue is fat.