Phylum Arthropoda
In arthropods, coelom reduced to the:
cavities
gonads
limbs
joints
cavities
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Outer layer of exoskeleton is called:A. cuticle
B. epicuticle
C. epidermis
D. dermis
Epicuticle is made up of:
A. proteins
B. wax
C. waxy lipoprotein
D. carbohydrates
Epicuticle is impermeable to water, acting as a barrier for microorganisms and:
A. pesticides
B. insects
C. cattle’s
D. rain
How many layers exoskeleton has?
A. two
B. one
C. three
D. four
Process of Molting in arthropods is mediate by an enzyme named as:
A. peptone
B. histone
C. ecdysone
D. lipase
In arthropods, sensory receptors are known as:
A. nerves
B. adaptations
C. sensila
D. modification
Jointed external skeleton is called:
A. exoskeleton
B. endoskeleton
C. hydrostatic skeleton
D. epidermis
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