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book Zoology 8th Edition by Stephen Miller,John Harley cover

Zoology 8th Edition by Stephen Miller,John Harley

النسخة 8الرقم المعياري الدولي: 978-0073028200
book Zoology 8th Edition by Stephen Miller,John Harley cover

Zoology 8th Edition by Stephen Miller,John Harley

النسخة 8الرقم المعياري الدولي: 978-0073028200
تمرين 4
The outer covering of an animal, the __________, functions primarily to protect against mechanical and chemical injury and invasion by microorganisms.
A) integument
B) skeleton
C) musculature
D) vascular system
E) dermis
التوضيح
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Zoology 8th Edition by Stephen Miller,John Harley
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