Linzey - Vertebrate Biology - Chapter 6 ppt

... Teleost fish (a) Vertebrate embryo (e) Anuran 123 4 56 34 56 34 56 34 56 34 6 3 - Carotid arch 4 - Systemic arch 6 - Pulmonary arch FIGURE 6. 17 Arrangement of the aortic arches in (a) vertebrate embryo; ... hormone testosterone. Grafe and Linsenhair, 1989 Linzey: Vertebrate Biology 6. Amphibians Text © The McGraw−Hill Companies, 2003 164 Chapter Six TABLE...

Ngày tải lên: 06/07/2014, 22:20

... probe for 6 to 11 ani- mals also at :4.3°C were colon: 0 .62 °C±0.11°C, 6 cm; foot: :0 .65 °C±0.15°C, 3 mm; abdominal: :0.59°C±0.13°C, 2 cm; thoracic: 0.49°C±0.12°C, 1 cm; oral: :0. 16 C±0. 16 C. From ... black-tailed deer (Odocoileus hemionus), secretions from four glands are considered important in social communication (Müller-Schwarze, 1971) (Fig. 12 .6) . The scent of the tarsal 3a 4...

Ngày tải lên: 06/07/2014, 22:20

... popula- tion of 60 0 moose was estimated by aerial strip count (Krefting, 1951). Mech (1 966 ) estimated the 1 960 popula- tion at 60 0 animals. The moose population apparently increased during the 1 960 s ... selection brings Linzey: Vertebrate Biology 13. Interspecific Interactions Text © The McGraw−Hill Companies, 2003 3 76 Chapter Thirteen together, one species of Paramecium d...

Ngày tải lên: 06/07/2014, 22:20

... named 1 76 0-7 0 0 100 200 300 400 500 60 0 181 0-2 0 1 86 0-7 0 191 0-2 0 1 96 0-7 0 198 0-9 0 FIGURE 1.24 The number of new mammal species discovered (some resulting from taxonomic revisions) from 1 760 to 1990. While the biggest ... by other sala- manders and frogs. In some cases, the male parent guards the eggs. Altricial One-day-old meadowlark Precocial One-day-old ruffed...

Ngày tải lên: 06/07/2014, 22:20

... class of vertebrates are given in Chapters 4 6, 7, and 9. Linzey: Vertebrate Biology 2. Systematics and Vertebrate Evolution Text © The McGraw−Hill Companies, 2003 44 Chapter Two Vertebrate ... reconsidered. Systematic Zoology 27:17– 26. Linzey: Vertebrate Biology 2. Systematics and Vertebrate Evolution Text © The McGraw−Hill Companies, 2003 Systematics and Vertebrate Ev...

Ngày tải lên: 06/07/2014, 22:20

... fossil (Monastersky, 1996c; Shu et al., 1996b). Cathaymyrus diadexus (Fig. 4.4a) is 2.2 cm long, has V-shaped segments that closely resemble the stacked Linzey: Vertebrate Biology 4. Early Chordates ... primitive Linzey: Vertebrate Biology 4. Early Chordates and Jawless Fishes Text © The McGraw−Hill Companies, 2003 Early Chordates and Jawless Fishes 81 (a) (b) (a) Arandaspis, a 47...

Ngày tải lên: 06/07/2014, 22:20

... gives recom- mendations of what to eat and what to avoid to be ecologi- cally responsible. Linzey: Vertebrate Biology 5. Gnathostome Fishes Text © The McGraw−Hill Companies, 2003 114 Chapter Five Remnants ... of the yolk sac form a pla- centa-like connection to the wall of the uterus, which sup- plies the developing young with nourishment during the remainder of the 9- to 12-month...

Ngày tải lên: 06/07/2014, 22:20

... males. (a) 6 0- to 80-ton titanosaur; (b) 55-ton Supersaurus; (c) 45-ton Brachiosaurus (=Ultrasaurus); (d) 13-ton Shantungosaurus; (e) 6- ton Triceratops; (f) 7-ton Tyrannosaurus; (g) 1 6- ton Indricotherium; ... 1 6- ton Indricotherium; (h) 2-ton Rhinoceros; (i) 5-ton Megacerops; (j) 10-ton Mammuthus; (k) 6- ton Loxodonta; (l) 0.3-ton Panthera; (m) 1-ton Scutosaurus; (n) 1-ton Megalan...

Ngày tải lên: 06/07/2014, 22:20

... produced. Crews and Young, 1991 Linzey: Vertebrate Biology 8. Reptiles: Morphology, Reproduction, and Development Text © The McGraw−Hill Companies, 2003 2 16 Chapter Eight Scleral ossicle Iris Eyelid Lens ... Besides their function of allowing side-to-side movement of the vertebral column, epaxial muscles take on new functions including support and Linzey: Vertebrate Biology 8...

Ngày tải lên: 06/07/2014, 22:20

... artic- ulation permits the typical vertical (up-and-down) move- ment of the head, whereas the atlas–axis articulation allows lateral (side-to-side) movements of the head. Linzey: Vertebrate Biology ... mid-1980s and Eosimias in 1994, the oldest well-documented anthropoids came from 3 6- million-year-old rocks in Egypt, suggesting that such creatures arose in Africa; however, the Eosimias...

Ngày tải lên: 06/07/2014, 22:20