Phylum Arthropoda Multiple Choice Questions
1. Arthropod exoskeleton is
A. Softened
B. Flexible
C. Hardened and inflexible
D. Softened and flexible
Answer: C
2. Arthropod exoskeleton is made of
A. Chitin only
B. Chitin and protein
C. Protein and collagen
D. Collagen and chitin
Answer: B
3. A uniquely elastic protein _____ is capable of recovery of its shape after deformation
A. Collagen
B. Resilin
C. Chitin
D. Elastin
Answer: B
4.Crustacea have cuticle hardened by
A. Potassium salts
B. Collagen
C. Calcium salts
D. Magnesium salts
Answer: C
5. Themidgut of arthropod receive secretion from
A. Digestive tract
B. Reproductive tract
C. Pituitary gland
D. All
Answer: A
6.Ommatidia are ______ in number in insects
A. 1000
B. 2000
C. 3000
D. 4000
Answer: D
7. ____ specie of onychophorans are known
A. 90
B. 100
C. 110
D. Unknown
Answer: C
8. The exoskeleton of arthropod are modified into sensilla in the form of
A. Hair only
B. Hair and pit only
C. Hair pit and bristles
D. Bristles only
Answer: C
9. The dorsal lobe of the brain of arthropod receive sensory axon from
A. Hands
B. Eyes
C. Ear
D. Nose
Answer: B
10.The ____ in arthropod is lined with permeable cuticle
A. Foregut
B. Midgut
C. Hindgut
D. None
Answer: B
11. In ____ there is no separate digestive gland
A. Insects
B. Mammals
C. Birds
D. Fishes
Answer: A
12. Brain of arthropod initiate neurosecretion of hormone from a structure near
A. Brain
B. Heart
C. Mouth
D. Stomach
Answer: A
13. In arthropod the need to moult during growth provide an opportunity for ____
A. Parthenogenesis
B. Metamorphosis
C. Both
D. None
Answer: B
14. ____ are crucial for the survival of most arthropods
A. Epicuticular lipids
B. Epicuticular protein
C. Epicuticular carbs
D. None
Answer: A
15. Exoskeleton of arthropod is made up of
A. Wax and chitin
B. Chitin and soft protein
C. Chitin and tanned protein
D. Protein and wax
Answer: C