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Subjects
Science CBSE
Class 9
Tissues
Textbook based HOTS
30.
Multiple choice questions XXX
Exercise condition:
2
m.
1
.
Wrinkling in old age is due to
keratin
actin
myosin
collagen
2
.
Dermis of mammalian skin is mainly composed of
muscular tissue
epithelial tissue
connective tissue
all of the above
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