Answer: first statement that Keratin is a protein in the cells of the epidermis that provides strength and waterproofing is correct
Explanation:
The outer layer of skin, the epidermis, provides waterproofing and serves as a barrier to infection.
The middle layer of skin, the dermis, contains blood vessels, nerves, and glands that are important for our skin’s function. The inner layer of the skin, the subcutis, contains fat that protects us from trauma. The cells in all of the layers except the stratum basale are called keratinocytes. A keratinocyte is a cell that manufactures and stores the protein keratin. Keratin is an intracellular fibrous protein that gives hair, nails, and skin their hardness and water-resistant properties.
Keratin is an important protein in the epidermis. Keratin has two main functions: to adhere cells to each other and to form a protective layer on the outside of the skin. In epithelial cells, keratin proteins inside the cell attach to proteins called desmosomes on the surface.
The true statement about the skin is that keratin, produced by Keratinocytes in the epidermis, provides skin its strength and waterproofing. Melanocytes in the epidermis produce Melanin, not Calcium. Sebacious and sweat glands are exocrine, not endocrine, and are located in the dermis. The hypodermis, not the basement membrane, is found below the dermis.
The correct statement about the skin is that 'Keratin is a protein in the cells of the epidermis that provides strength and waterproofing'. Keratin is an intracellular fibrous protein that gives hair, nails, and skin their hardness and water-resistant properties. These Keratinocytes are found in the epidermis, the outermost layer of the skin, where they produce Keratin. Melanocytes, another type of skin cells, also reside in the epidermis. They produce Melanin, the pigment responsible for skin color, rather than Calcium.
Regarding the other statements, Sebacious and sweat glands are not endocrine but are exocrine glands, as they release their secretions directly to the skin's surface, not in the bloodstream. These glands are located in the dermis, the layer beneath the epidermis. Beneath the dermis lies not the basement membrane, but the hypodermis.
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b. circumcision
c. tubal ligation
d. anorchism
B. Talk to Jamie's new friends, whom she does not trust.
C. Try to forget about Jamie's problems.
D. Talk to her softball coach, whom she trusts.
Jamie is showing the symptoms of depression and is likely to be under a lot of stressed conditions. Kara can help her by talking to her softball coach. Thus, option D is correct.
Underage drinking is an illegal case of teenagers drinking prohibited drinks like alcohol. In order to help Jamie, Kara can use the help of her Softball coach as Jamie had a deep trust in him.
The trust will be useful to help and solve Jamie's problem as she will be able to confide her problems and issues more easily to them as she cannot talk to her parents about the same.
Therefore, Jamie can be helped by her softball coach.
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D. Talk to her softball coach, whom she trusts.
B. removal of organs helped Egyptians study anatomy.
C. it allowed Egyptians to practice surgical procedures.
D. it helped contain disease.
The process of mummification was thought to help advance medicine because removal of organs helped Egyptians study anatomy. Correct answer: B
Egyptians realized that the internal organs would rot prior to the external parts of the body. Because of the mummification their doctors were able to record findings and develop methods of surgery based on this anatomical knowledge.