hormones
water and salt
oil
sebum
B. water and salt
presence of melanophores
growth of algal colonies of skin
inidescence of skin
presence of special chromatophores below the epidermal cells.
sweat glands
mucous glands
sebaceous glands
meibomian glands
hairs
stratum granulosum
lymph vessels
nerve fibres
air spaces for respiration
blood spaces
lymph spaces
mucus filled spaces
skin in the epidermis
skin in the dermis
stomach in its epithelium
intestine in the epithelium
dermis
epidermis
sub cutaneous fat
hair follicle
melanin
melanophores
porphyrin
chromatophores
gradual loss of elasticity in the subcutaneous layer
gradual loss of adipose tissue below dermis
poor supply of blood to skin
excess loss of water from skin
stratum lucidum
stratum corneum
stratum granulosum
malpighian layer
mucous glands
sebaceous glands
hairs
nails
epidermis
dermis
subcutaneous layer
skin glands
cuticle
keratin
chitin
none of these
glans
scrotum
pinna
areola mammary
epidermis of skin of mammals
dermis of skin of mammals
epithelium of stomach of frog
epithelium of intestine of frog
the skin is soft
the skin is not respiratory
the skin has sebaceous glands
the skin has hairs
hare
rabbit
whale
hippopotamus
stratum granulosum
stratum comeum
dermis
malpighian layer
in the epidermis
in the dermis
in the muscles
below the derm
wrinkles
hair
feathers
nails
possessing stratum comeum for protection against wear and tear
not possessing subcutaneous fat
possessing mucous glands for producing mucus.
possessing sebaceous glands which produce sebum for keeping skin greasy and water-proof.
parietal mesoderm
ectoderm
endoderm
both (b) and (c)
epidermis
dermis
subdermal tissue
whole of the skin
scales
epidermis I
mucous glands
chromatophores
palm
sole
head
thumb
placoid
rhomboid
cycloid
ctenoid
subcutaneous layer
epidermis
glands
stratum corneum
plug the skin pores
nourish the hair follicles
cool the skin by vaporisation
make the skin and hair water proof
water and fat
proteins
carbohydrates
all of these
presence of sweat glands
stratum coreum
stratum lucidum
thick subcutaneous fat
stratum comeum
stratum spongiosum
stratum compactum
any of these