Immunization against fly uses our best estimate

  • Virginia Tech
  • BIOL 1106
  • Notes
  • katieh2020
  • 15
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Immunization against fly uses our best estimate -Hypersensitive mast cells release histamine, allergen causes production of IgE antibodies-IgE attach to mast cells receptors and heighten mast cells sensitivity, when allergens attach to mast cells mast cells release histamine-Anaphylaxis vasoconstriction due to inflammation, then vasodilation due to adrenalin-Immune privilege the eye and tests have layers of cells that protect them from the immune system, an inflammation response could cause the interior of eyes to swell causing extreme pressure and severe damage-Pregnancy half of genetic material of an embryo is from the father, why isn’t the fetal tissue rejected from the motherLesson 18 Notes-Estrous reabsorb the endometrium (the uterine lining) if no pregnancy -Menstrual -> shed the endometrium if no pregnancy -Some species with estrous cycles are inly fertile seasonally (go into heat)-Marsupial uterus not specialized fir the implantation although a placenta dies exist for a few days in some species-Period of intrauterine development ranges from 12 -38 days, where the fetus grips away from the vulva to the pouch which cover the mammary nipples, there they firmly attach and come outfully formed with eyes open-Human chorionic gonadotropin released by the gastrula-Oviparouslays an egg; -Ovo-viviparousthe young have their own yolk (nutrients), eggs develop internally-Viviparousembryos develop internally, nourished by mother, live birth-Oviparous (echidna and platypus) which both have mammary glands-Advantagesgenetic diversity, population cohesiveness, adaptive fitness (survival to reproductive age)-Fish alone have quite a lot of diversity in their sexuality; cod where females she thousands of eggs into the water where they may or may not be fertilized by the millions of sperm by males, fry becomes -High fecundity and no parental care (viviparid)-Seahorseovoviviparous, parent cares for eggs in their bodies until they hatch, low fecundity and high parental care, male takes the eggs from the female-Cichlidssome brood eggs in their mouths (low fecundity and high parental care)-Synchronous hermaphrodites possess both active and female reproductive organs at the same time (earthworm)-Sequential hermaphrodites(clown fish), either male or female, but can switch if needed-Asexual budding and fragmentation and parthenogenesis
-Parthenogenesis offspring are produced without fertilization, female desert whiptail lizard pseudo copulate to simulate ovulation. Eggs are diploid (produced by mitosis), the behavior stimulates fertilization; daphnia can reproduce asexually seasonally, when conditions are unfavorable, some eggs develop into males which reproduce sexually with females that produce haploid gametes by meiosis, the fertilized eggs grow a protective casing around the and can overor disperse in the wind. It they survive they will hatch into females; unfertilized queen bee eggs

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