Quiz on Mammals' Fur and Skin Structure

What is one of the primary functions of a mammal's fur coat?

• To enhance the sense of smell

• To increase body weight

• To act as a protective layer

• To provide color to the skin

Which mammal is known for changing its fur color with the seasons?

• Grey wolf

• Arctic fox

• Macaque monkey

• Chinchilla

What color is the fur of polar bears primarily for?

• To attract mates

• To camouflage in snow

• To absorb heat

• To reflect sunlight

What is the outer layer of skin called?

• Subcutaneous layer

• Hypodermis

• Epidermis

• Dermis

What substance do sebaceous glands secrete?

• Melanin

• Sebum

• Keratin

• Sweat

What type of hair provides the first layer of protection in a mammal's fur?

• Vibrissae

• Underfur

• Guard hairs

• Down hairs

What is the primary function of underfur?

• To attract mates

• To provide camouflage

• To protect from UV rays

• To insulate the body

What is the role of Ruffini's corpuscle?

• Detects vibration

• Responds to light touch

• Secretes sebum

• Stores energy

How many quills cover a porcupine?

• 40,000

• 10,000

• 20,000

• 30,000

What is the primary component of the dermis layer?

• Fatty tissue

• Sebaceous glands

• Blood vessels

• Nerve endings