MBM Study Guide MT-1 F09


Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Study Guide for Midterm I 1. Mating systems lecture corrections: (1) The chondrichthyan clasper is a modified pelvic fin (I mistakenly labeled it pectoral fin in the diagram I drew on the board). (2) The Nereid worm that forms mating swarms in the Salton Sea is Neanthes , not Nereis . 2. How egg and sperm are brought together in oysters, Neanthes, palolo worms, acorn barnacles. a. Oysters: release gametes in water b. Neanthes: swim up and release gametes on surface of water c. Palolo worms: gonaded segment breaks off by itself and goes to surface by itself d. Acorn barnacles: “search out females” by extending (hermaphrodites) 3. Fertilization, incubation, and parental care in fish, amphibians, reptiles, birds, and mammals. Internal vs external fertilization. Examples given: salmon, stickleback, mouth-breeding cichlid, seahorse, condricthyans, anurans, salamander. a. Fish (Salmon): external fertilization b. Amphibians (Salamanders): internal fertilization (spermatophore) c. Reptiles: internal fertilization d. Birds: internal fertilization, external incubation e. Mammals: internal fertilization, internal incubation 4. Monogamy, polygamy, polygyny, polyandry, promiscuity. a. Monogamy: long term relationship with one mate b. Polygamy: multiple mates c. Polygyny: multiple mates for male d. Polyandry: multiple mates for female e. Promiscuity: one night stand 5. Cuckoldry and paternity in monogamous species a. Monogamous species: mate yr after yr, meet at old nest site i. Cuckoldry: cheating 6. Incidence of monogamy in birds vs mammals. a. Monogamy in birds: 90% + b. Monogamy in mammals: 3-4%
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
7. Prevalence of monogamy, polygyny, and polyandry in human societies in 1938. a. Monogamy: 18% b. Polygyny: 81% c. Polyandry: 1% 8. Lesbian gulls of southern California. a. 2 gulls take care of a single nest (both females) 9. Know orders and families of marine birds and mammals. Also suborder for cetaceans. a. Cormorants (Family: Phalacoracidae) (Order: Pelecaniformes) b. Gulls (Family: Laridae) (Order: Charadriiformes) c. Tube Nosed Birds (Albatross) (Family: Dimedeidae) (Order: Procellariformes) d. Storm Petrels (Family: Hydrobatidae) (Order: Procellariformes) e. Auks/Murres/Puffins (Family: Alcidae) (Order: Charadriiformes) 10. Chordata, chordate, notochord. Segmentation and ossification of notochord. a. Notochord: segments into vertebral column 11. Scientific name, binomial, trinomial. When to use lower case, upper case, and italics in taxonomic names. a. Scientific name (always italicized) ex: Zalophus californicanus (CA Sea Lion) 12. Phylum, subphylum, class, order, family, genus, species, subspecies. 13. Study video handouts: Fishing for a Living, Wolves of the Sea, Air Jaws, Tidal Seas, Penguins Under Siege 14. Fishing for a Living slide show questions. 15. Distribution of extant and recently extinct Sirenians
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 9


This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online