Lesson 22

1. The skin is the body's largest organ. Consists of two layers which are epidermis and dermis.The skin’s main functions are preventing water loss from the body and serving as a barrier to the entry of microorganisms.Skin cancer and acne are 2 big problems with skin. 2.They all help Muscles in different ways, smooth helps the internal organs and stuff, skeletal helps bones move and such, and cardiac muscle is what helps our heart work.

1. I can describe the skin and it's functions, and identify common skin problems.
2.Identify and describe the three types of human muscle tissue.

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