What's the difference between fissiparous and ovoviviparous?
Fissiparous
Definition:
(a.) Reproducing by spontaneous fission. See Fission.
Example Sentences:
(1) Yes, that might mean five more years of pain, though I suspect in these fissiparous times it won’t last so long.
(2) Groping for British emblems to bind together an ever more diverse and fissiparous society, politicians struggle to find cultural and emotional social glue.
(3) But Clegg must be thinking very carefully about his options – the Liberals have a terribly fissiparous history.
(4) The mortality and fissiparity frequency of the subjects were studied.
(5) At doses where an antioxidant effect prevails, fissiparity is stimulated.
(6) The toxicity of selenium (Na2SeO3) and mercury (HgCl2) was determined by using a freshwater planarian which is particularly sensitive to pollution, and belongs to a fissiparous breed of Dugesia gonocephala.
Ovoviviparous
Definition:
(a.) Oviparous, but hatching the egg while it is within the body, as some fishes and reptiles.
Example Sentences:
(1) The uterine epithelium of the viviparous Salamandra atra and the ovoviviparous Salamandra salamandra was studied in non pregnant and ovulating females and in females during different stages of pregnancy.
(2) The guppy is an ovoviviparous teleost with fertilization and gestation occurring intrafollicularly, and ovulation and hatching at around parturition.
(3) n. from the opossum, Didelphis marsupialis, is distinguished from other genera of the Angoistrongylinae by the structure of the dorsal and lateral rays, complex gubernaculum, and ovoviviparity.
(4) Second-year individuals of Gemma gemma also are randomly distributed, but its total population is aggregated because of its ovoviviparous habit.
(5) These hydrolysing activities were unexpected for an ovoviviparous reptile.
(6) Seasonal modulation in antibody production in relation to the state of lymphoid tissue development was studied in the ovoviviparous fish, S. marmoratus.
(7) The development of the limbs has been studied in 15 embryos of Scelotes gronovii, found in 8 ovoviviparous females collected at Saldanha Bay, in South Africa, Cape Province.
(8) The present investigation describes the fine structural changes that occur during proteid yolk formation in the developing oocytes of the guppy (Lebistes reticulatus), an ovoviviparous teleost.
(9) In this ovoviviparous cockroach, the onset of vitellogenesis may thus not be triggered solely by juvenile hormone, and indolamines may play a role in the uptake of haemolymphatic proteins by oocytes.
(10) In one of them Helisoma duryi was used due to its ecological advantages as compared with the intermediate host (higher growth rhythm and lower generational time), and in the other Tarebia granifera was used, which has biological and ecological advantages upon most mollusks (ovoviviparous, parthenogenetic, longer life cycle and higher growth rhythm).
(11) The central fat body of the ovoviviparous cockroach Nauphoeta cinerea was studied during the first reproductive cycle of the female by means of light microscopy, autoradiography and electron microscopy.
(12) It is easily maintained in the laboratory; the female is ovoviviparous, carries up to 40 embryos in its brood pouch, and young-to-young cycle is about 10 weeks.