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Onychophora: Quiz


Question 1: The sole exception is Epiperipatus imthurni, of which no males have been observed; reproduction instead occurs by ________.
ParthenogenesisKomodo dragonAsexual reproductionFlatworm

Question 2: Their name comes from the ________ cruralis meaning "of the legs".
Old LatinRoman EmpireLatinVulgar Latin

Question 3: They open outwards at the crural papillae—small wart-like bumps on the belly side of the leg—and secrete chemical messenger materials called ________.

Question 4: Pressure of their ________ internal bodily fluid on the body wall provides rigidity, and muscles are able to act against it.
AerodynamicsIdeal gasCompressibilityBernoulli's principle

Question 5: Males possess two separate ________, along with the corresponding sperm vesicle (the vesicula seminalis) and exit channel (the vasa efferentia).
Reproductive systemPenisTesticleProstate

Question 6: [9] They are considered to be ecologically equivalent to centipedes (________).

Question 7: Except in a few (typically subterranean) species, one simply constructed ________ (ocellus) lies laterally, just underneath the head, behind each antenna.
Nervous systemBrainSensory systemEye

Question 8: The most important nitrogenous excretion product is the water-insoluble ________; this can be excreted in solid state, with very little water.
Carbamoyl phosphateUric acidUridine monophosphateXanthine

Question 9: The detailed process by which this is achieved is in most cases still unknown, a true ________ having only been observed in species of the genus Paraperipatus.
RectumBreastReproductive systemPenis

Question 10: The females of many species are fertilized only once during their lives, which leads to ________ sometimes taking place before the reproductive organ of the females are fully developed.
MasturbationPregnancyHuman sexual behaviorSexual intercourse

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