Subphylum Chelicerata: Class Arachnida
For removal of nitrogenous wastes, arachnids use Coxal glands and:
book lungs
biramous appendages
malpighian tubules
sensilla
malpighian tubules
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Most of arthropods are:A. viviparous
B. ovoviviparous
C. oviparous
D. all of above
Sensilla are the:
A. sensory receptors
B. appendages
C. opisthosoma
D. touch receptor
In spiders, female secrets a chemical on silk web to attract male for mating is called:
A. estrogen
B. hormone
C. pheromones
D. progesterone
Smooth muscles of arthropods secrete venom during
A. fertilization
B. feeding
C. stinging
D. intimation
Prosoma of spider contains chelicerae with poisonous glands and:
A. venom
B. cyanine
C. fangs
D. operculum
Process by which silk lines are produced by young spiders, caught by air current, helping in traveling at altitudes, approximately 100 km, known as:
A. silk formation
B. movement
C. flying
D. ballooning
Most members of subclass arachnids are:
A. herbivorous
B. carnivorous
C. symbiotic
D. mutualists
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