Phylum Arthropoda
How many layers exoskeleton has?
two
one
three
four
two
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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
In arthropods, coelom reduced to the:
A. cavities
B. gonads
C. limbs
D. joints
Epicuticle is impermeable to water, acting as a barrier for microorganisms and:
A. pesticides
B. insects
C. cattle’s
D. rain
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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