Hair and fingernails are similar because ____

Q: Projections of the dermis toward the epidermis are called _____.

A: The dermis is a layer of skin between the epidermis and subcutaneous tissues, which consist of dense…

Q: At high power of magnification focus on the layer of the epidermis that appears purple beneath the…

A: The skin comprises three layers, they are epidermis, dermis, and hypodermis. Epidermis is the…

Q: Discuss the function of melanin, other than providing color to the skin.

A: Melanin is a natural pigment produced by specialized cells known as melanocyte cells through a…

Q: Can years of exposure to to sun contributeto melanoma

A: Melanoma is a type of skin cancer that starts in the melanocytes. Melanocytes are the cells that…

Q: Define hair cell

A: Hair cells are sensory receptors.  These cells are present in auditory region and vestibular region…

Q: Define terminal hair

A: Hair is an derivative of the epidermis. The hair contains follicle and  hair shaft. The main…

Q: Define brush border

A: The cell is the basic structural, functional, and biological unit of all known organisms. A cell is…

Q: Describe the structure and composition of nails.

A: At the tip of fingers and toes, there is a horn-like keratinous plate known as nails.  The visible…

Q: What is integument. Describe three layers of integument and its function in detail.

A: The skin along with its accessory structures make up the integumentary system. This system is…

Q: B 1. Name the region of the hair labeled A. 2. Name the structure labeled B. 3. Name the specific…

A: Hair  Hair is a thread like strand grow on the skin of the mammals and some other animals.

Q: Why Woolly Hair Runs in Families

A: The curly, fuzzy, short and sparse hairs are known as woolly hairs. Mutations in the KRT2 (keratin…

Q: The three stages of hair growth are the ___________,___________, and ___________ phases.

A: A protein filament that grows from follicles located in the dermis generally called hair. This also…

Q: ______ Can Separate Particles and Molecules That Differ in Mass or Density.

A: BASIC INFORMATION MATTER Everything that are present in our surroundings can be regarded as matter.…

Q: In a closed circulatory system, the blood bathes the cells of the tissue. True False

A: Introduction: The circulatory system is one of the transport systems that transports nutrients,…

Q: he mechanism by which a functional MC1R protein affects skin color is it ______     directly…

A: Melanocytes are the cells that produce melanin- eumelanin and pheomelanin. The relative ratio of…

Q: True or False: Currently, DNA typing can individualizea single hair. ___________

A: The normal variations detected in a sample of DNA (deoxyribonucleic acid). The DNA consists of a…

Q: "Bumps" which form on the ends of baby's fingers while still in the womb, and effect how the…

A: The small ridges and depression patterns on the fingertips are known as fingerprints. They develop…

Q: Where do hair cells undergo mitosis?      hair papilla     sebaceous gland      hair matrix…

A: The hair is located outside of the body that is responsible for conserving heat. The hair root is…

Q: Describe a typical strand of hair.

A: A cell is the smallest basic structural and functional unit of life. All living organisms are…

Q: Which skin appendage functions to avoid overheating. Sebaceous (oil) glands Sweat (sudoiferous)…

A: Skin appendages are epidermal and dermal-derived skin components such as hair, nails, sweat glands,…

Q: Sebaceous glands are______________ glands that secrete _______________ .

A: A sebaceous gland is found in the dermis of the skin which helps in the protection from the damages…

Q: The following layers (indicated by arrow) of cells make up the of the skin.

A: Skin is the layer of typically delicate, adaptable external tissue covering the body of a vertebrate…

Q: Human hair generally has a medullary index of lessthan ___________; the hair of most animals has…

A: The structure of hair consist of two main parts: follicle and hair shaft. The follicle is embedded…

Q: What are the types of hair? Explain you answer.

A: Hair is one of the characteristics of mammals and has various functions such as protection from…

Q: Give the 4 factors affecting the urine volume in physiological system. Explain how each factor…

A: Urine: a. The urinary system or the urinary tract contains the following parts: two kidneys, two…

Q: True or False: If a medulla exhibits a pattern, the hair isanimal in origin. ___________

A: Hair is considered as the characteristics features of all mammals. It is associated with several…