13. Suppose that someone does a selection experiment on body size in male fruit
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13. Suppose that someone does a selection experiment on body size in male fruit one side of a barrier with holes in it. Male flies with the mean holes in the barrier. What would you expect to happen to variance in body SieRver body size can fit most easily through the male a) it should increase b) it should decrease (Sm it should not change at all d) it could increase or decrease, you can't say e) it will increase at first, and then decrease 14. Which is a member of the apicomplexan group of protists? a) Amoeba proteus Plasmodium vivax e) Chlamydomonas d) Trypanosoma e) Paramecium 15. A blastula develops into which state as the gut cavity d evelops? It remains in the blastula stage. gastrula C. acoelomate D. pseudocoelomate 16. How does the mosquito transmit malaria from an ill person to a healthy person? a) Plasmodium gametocytes are sucked from one person's blood, form an oocyst that undergoes sporogony and the sporozoites migrate across the stomach lining to the saliva ducts. b) Plasmodium gametocytes are taken up from one person's blood and cross into the saliva duct to be reinjected into the next person. c) Plasmodium gametocytes are taken up from one person's blood, fuse to form a zygote that becomes a motile ookinete that enters the saliva ducts. d) Plasmodium is taken up from one person's blood and squirted back out into the next person. e Plasmodium gametocytes are taken up from one person's blood, fuse to form a zygote that becomes a motile ookinete, that crosses the stomach wall, forms an oocyst that undergoes sporogony and the sporozoites then migrate to the saliva ducts to be injected into the human host. 17. Which pair of the following taxa are likely to be most closely related to each other: Bufo americanus, Turdus americanus, Bufo mexicana, Rana mexicana ? a) there is no way to know b) Turdus americanus and Bufo americanus c) Bufo americanus and Bufo mexicana Bufo mexicana and Rana mexicana Turdus americanus and Rana Mexicana e)Explanation / Answer
13. Suppose that someone does a selection experiment on body size in make fruit flies. Female flies are kept on one side of a barrier with holes in it. Male flies with the mean average body size can fit most easily through the holes in the barrier.The body size over 20 generations should not change at all.
(c) it should not change at all.
14. The member of apicomplexan group of protists
(b) Plasmodium vivax
A member of the protist phylum Apicomplexan, which includes mostly parasitic,single celled eukaryotes such as Plasmodium, which causes malaria in humans.
15. A blastula develops into the gastrula state as the gut cavity develops.
(B) gastrula
16. The mosquito transmit malaria from an ill person to an healthy person
(e) Plasmodium gametocytes are taken up from one person's blood fuse to form a zygote that becomes a motile ookinete,that crosses the stomach wall ,forms an oocyst that undergoes sporogony and the sporozoites then migrate to the saliva ducts to be injected into the human host.
17. The following taxa are likely to be most closely related to each other:
(c) Bufo americanus and Bufo Mexicana.
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