Bio Unit 9A Test

The organ system that covers and protects the body is the _________________ . The main organ of the system is the _________________

• Excretory system, skin

• Excretory system, Heart

• Integumentary system, skin

• Integumentary system, Heart

Muscle Tissue _______________

• supports and protects

• covers body surfaces

• helps the body communicate

• enables movement

The outer layer of the skin is called ________________. It consists of a thin layer of _________________ cells

• epidermis, sebaceous

• epidermis, epithelial

• dermis, sebaceous

• dermis, epithelial

Dead outer cells are shed constantly. The cells of the inner layer of epidermis continually divide by _________________to replace the cells that are shed

• Mitosis

• Meiosis

• Regeneration

• spontaneous combustion

_________________________ protects deeper cells from the damaging effects of ultraviolet rays of sunlight

• Melanin

• The epidermis

• Sun block

• Shade

The amount of ________________ produced determines skin color.

• melanin

• Epidermal cells

• skin

• hair

The ___________________ contains nerve cells, muscle fibers, sweat glands, oil glands, and hair follicles.

• epidermis

• dermis

• sebaceous gland

• trilayer trifecto

________________________ are oil producing glands which lubricate the skin and the hair.

• sweat glands

• sebaceous glands

• endocrine glands

• salivary glands

What is the main benefit of getting enough sunlight?

• Vitamin D for digestion

• Proper bone formation

• Vitamin C for skin health

• Vitamin Z for Zombie formation

Exposure to ultraviolet radiation from the sun or a tanning bed increases the risk of ____________________.

• skin cancer

• bone cancer

• nail cancer

• diabetes