Integumentary System (Amphibians to Mammals)

A type of feather with no barbs at all.

• contour

• down

• bristle

• filoplume

In mammalian integument, it is considered avascular and nourished by diffusion from the derma

• False

• True

The epidermal scales, with thicker outer layer of keratin with thinner "hinge" region.

• amphibians

• aves

• fish

• reptiles

These are the epidermal layers of the birds

• stratum corneum, stratum spinosum and stratum basale

• stratum corneum and stratum basale

• stratum corneum, stratum lucidum and stratum basale

• stratum corneum, stratum spinosum, stratum lucidum and stratum basale

Anuran adipose tissue is related in what layer of the skin?

• Stratum germinativum

• subcutis

• dermis

• Stratum corneum

These are the structures found within the dermis, EXCEPT ONE

• Leydig cells

• muscous gland

• chromatophores

• poison glands

A type of feather that gave the bird its characteristic for being smooth round shape

• semiplume

• filoplume feather

• downy feather

• contour feather

How many layers of epidermis in the Anurans?

• 2

• 3

• 4

Which class whose inner layer of epidermis is regenerative due to molting?

• reptiles

• aves

• fish

• amphibians

A type of feather with very few barbs at their tips

• filoplume

• down

• bristles

• contour