male worm造句

• Typically, male worms undergo a more pronounced transformation from atoke to epitoke.
• Male worms have a large bursa as shown in Figure 2a.
• Case reports have found male worms ranging from 3-6.3 mm in length and 360-380 ?m in width.
• Consequently, male worms suffer premature death due to all the effort required competing for and defending females.
• Male worms are minute by comparison with the females and they take up residence inside the tubes.
• Oxamniquine acts mainly on male worms, but also induces small changes on a small proportion of females.
• He said Rouse took some worms to his laboratory for study and discovered tiny male worms living inside the females.
• The male worm, in the form of lesions, remains permanently attached to the tracheal wall throughout the duration of its life.
• Gems observed that when he put male worms together they died in about 10 days, sooner than when they were left with females.
• After maturation, which takes approximately three months, mating takes place; the male worm dies after mating and is absorbed by the host's body.
• The drug causes the male worms to shift from the mesenteric circulation to the liver, where the cellular host response causes its final elimination.
• The adult female worm resides within the adult male worm's gynaecophoric canal, which is a modification of the ventral surface of the male, forming a groove.
• Colonoscopy has been shown to be a useful diagnostic tool, especially in patients infected with only a few male worms and with no eggs presenting in the stool sample.
• Male worms, which have a single X chromosome in place of the hermaphrodite's two, arise spontaneously through rare mishaps when an egg or sperm cell is formed without an X.
• His theory was bolstered when he found that male worms who had genetic mutations limiting their activity lived even longer, for 30 days; comparable mutations in females didn't affect their lifespan.
• The bottom line, Gems told the British magazine New Scientist, is that the tiny male worms would live longer than their female counterparts if it weren't for their energetic sexual activity.
• But when he isolated individual male worms, they lived for 20 days _ longer even than the female average of 16 days . Isolating female worms had no effect on their life span.
• The vulva of a tiny worm might seem of little interest to anyone but worm biologists and male worms, but the cell signaling mechanisms involved in organizing the vulval cells have turned out to be the same as those used in certain human cells.
• He found that when male worms were placed with other males, they died in about 10 days, but when they were isolated they lived for 20 days . Females, on the other hand, lived for 16 days whether they were with other females or alone.