Choose the correct answers only. I will not accept wrong answer.

7. Which data structure is used for implementing a FIFO branch and bound strategy?

a) stack

b) queue

c) array

d) linked list

8.Although the integument is a covering, it is by no means simple, and some of its functions include ________.

A) the dermis providing the major mechanical barrier to chemicals, water, and other external substances

B) resident macrophage-like cells whose function is to ingest antigenic invaders and present them to the immune system

C) cooling the body by increasing the action of sebaceous glands during high-temperature conditions

D) epidermal blood vessels serving as a blood reservoir

E) heating the body by warming the dermal blood supply upon exposure to the sun

9) A needle would pierce the epidermal layers of the forearm in which order?

A) basale, spinosum, granulosum, corneum

B) basale, spinosum, granulosum, lucidum, corneum

C) granulosum, basale, spinosum, corneum

D) corneum, granulosum, spinosum, basale

E) basale, spinosum, lucidum, corneum

10) What are the functions of the papillary and reticular layers of the dermis? (2 marks)

11) The nail plate of fingernails and toenails are nearly transparent, acting like windows for viewing what? Explain (2 marks)

12) Why are the apocrine sweat glands fairly unimportant in thermal regulation? (1 marks)

13) The temperature yesterday was an uncomfortable 37 C. You unwisely chose to play tennis at noon, counting on your body's internal defenses to protect you against heat exhaustion. How did your body respond to this distress? (2 marks)

14) In addition to protection (physical and chemical barrier), the skin serves other functions. Which of the following is another vital function of the skin? (1 mark)

A) It converts modified epidermal cholesterol to a vitamin D precursor important to calcium metabolism.

B) It aids in the transport of materials throughout the body.

C) The cells of the epidermis store glucose as glycogen for energy.

D) It absorbs vitamin C so that the skin will not be subject to diseases.

E) It converts keratin to vitamin D required for bone formation.