Eutherian PowerPoint PPT Presentations

Amniotes through Eutherians Chapter 34.6-34.8 By: Francisco Berrios and Siria Arzuaga Amniotes A group of tetrapods that trace back to the same common ancestor.

BASAL EUTHERIANS

Dromedary VHLSGDEKNAVHG. Cow -MLTAEEKAAVTA. Rhino VDLTAEEKAAVLA ... Dromedary 0 0 0 0 8 7 7 4 8 8 4. Cow 0 0 0 0 0 3 7 6 0 6 6. Rhino 0 0 0 0 0 0 7 4 3 6 4 ...

food, burrows, caring for queen and her young) grasshopper ... Arvicolinae: North America. voles. Mircotus: lots of species. Phenacomys: heather and tree voles ...

Computation Theory Lab, CSIE, CCU, Taiwan. 3. Evolutionary trees ... O(nn2) possible evolutionary trees. 11/11/09. Computation Theory Lab, CSIE, CCU, Taiwan ...

Early Development Gametes Sperm Egg Lecithal = Yolk Microlecithal egg Small amount of yolk Amphioxus Eutherians Mesolecithal egg Medium amount of yolk Amphibians ...

Mitochondrial markers are too fast evolving to resolve divergences of ... Are marsupials monophyletic relative to eutherian mammals? Are rodents monophyletic? ...

Figure 34.2 Echinodermata Cephalochordata ANCESTRAL DEUTEROSTOME Chordates Urochordata Notochord Myxini Craniates Common ancestor of chordates Petromyzontida

Duration of pregnancy does not exceed the length of the estrous cycle. Placenta does secrete progesterone. ... Example: Human, monkeys, mare, sheep and ...

Chapter 34 The Origin and Evolution of Vertebrates

273 species, 18 families, & 7 orders in the Infraclass Metatheria ... non-reproductive opossums; dashed line at ~ 22 kcal = non-reproductive hamsters. ...

... detects minor vibrations Class Chondrichthyes Class Osteichthyes Bony fishes (trout and goldfish) Also have a lateral line system Operculum ...

Genomic Imprinting Tradeoffs in communication between maternal and paternal genetic effects Genomic Imprinting Differential expression of genes depending on parental ...

Animal feed safety testing is a niche -segment of the global feed testing market. The feed testing industry is continuously expanding driven by growing concern for livestock health among all stakeholders including – livestock owners, feed manufacturers, regulatory authorities, and animal rights organizations. The apprehension displayed regarding livestock feed quality has been swelling due to the increasing adulteration of livestock feed, and it is responsible for major outbreaks of diseases like BSE and PED. The key reasons for feed adulteration/contamination include mismanagement in handling and contamination of feed ingredients, water and inadequacy in processing feed inputs.

Nourishment of newborn with milk. Close mother-offspring bond. Evolved in association WITH dyphylodont teeth ... Platypus: only left ovary functional (as in birds) ...

Vertebrates are part of a larger phylum called Chordata which includes ... After the Devonian, the Carboniferous period was 'The age of the amphibians' ...

... (keratin), ectothermic, three chambered heart (i.e. turtles, lizards, and alligators) Major Divisions Birds (subdivision of reptiles): amniotic eggs, scales ...

Once egg forms, it is laid (platypus) or transferred to pouch (Echidna) ... Platypus do not have nipples, but have milk producing areas with hair tufts ...

amoebas that often use pseudopodia for food capture and locomotion ... Naegleria fowleri: a free living amoeba found in lakes and ponds that can cause ...

Title: No Slide Title Author: Derek girman Last modified by: Derek Girman Created Date: 7/6/2000 7:18:50 PM Document presentation format: On-screen Show

Human embryo (5 weeks) Notochord attachment site for muscles ... Platypus. P. Chordata. Mammalia. Monotremes. Echidna. P. Chordata. Mammalia. Marsupials ...

Vertebrates Emily Reiss Josie Jacob-Dolan Tori Willbanks-Roos

Sperm whale. Phocoena phocoena. Harbor porpoise. Orcinus orca. Killer whale. Toothed whales. Mysticeti. Odontoceti = Cetacea. Tragulus napu ...

Vegetal Pole yolk region. Animal Pole relatively yolk ... Biceps muscle. Notochord. Brain. Kidney. Spinal cord. Skin. Gastrulation in Macrolecithal eggs ...

The Molecular Clock? By: T. Michael Dodson Hypothesis For any given macromolecule (a protein or DNA sequence) the rate of evolution is approximately constant over ...

Ovis aries. Q-A vs. D-S jaw joint- the defining key character' for 80 years ~250 MYA ... Traits evolve at multiple locations on phylogeny. Reptilia. Archosauria ...

Classification of The Lion Completed by Kerryn Swann, 7E Characteristics Of The Lion Other Animals That Share These Characteristics Diet Dogs Outer Covering ...

Introduction to Vertebrates

Phylogeny and Systematics Fossil Formations Dating Phylogeny based on Continental Drift Pangaea Mass Extinctions Systematics Hierarchical Classification Phylogenetic ...

34'2 Hypothetical phylogeny of chordates

Descent with Modification: A Darwinian View of Life CH 22 Historical Context for Evolutionary Theory 1.Western culture resisted evolutionary views of life

Vertebrates Linnea Kirby, Michelle Duffy, and Adrienne Vergith-Hill

Includes most mammals we think about - whales, bats, elephants, shrews, and armadillos ... 6' at shoulder; could kill a modern elephant. Big guys ...

Therapsids showed increasingly mammal-like characteristics. These smaller therapsids had smaller ribs in their lumbar region, like mammals. ...

Vertebrate Diversity Chapter 34 Senses: vision, but no color; olfaction; electrical senses * Chordate Phylogeny Phylum Chordata Bilaterian deuterostomes Derived ...

Descent with Modification: A Darwinian View of Life CH 22 Historical Context for Evolutionary Theory 1.Western culture resisted evolutionary views of life

sloths and anteaters. armadillos. Dasypus novemcinctus ... giant anteater. Cyclopes. silky anteater. myrmecophagy = ant and termite eater. Xenarthra: claws ...

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The Chordata Chapter 34

Class Amphibia - amphibians - salamanders, frogs, caecilians (legless animals that burrow) ... Most amphibians rely heavily on moist skin to carry out gas ...

History of Life on Earth Chapter 25

Introduction to Chordates ... Chordates

0 Chapter 18 The Evolution of Animal Diversity Mammals are amniotes that have hair and produce milk Mammals are endothermic amniotes with Hair, which insulates their ...

Vertebrate Diversity Chapter 34 Senses: vision, but no color; olfaction; electrical senses * Chordate Phylogeny Phylum Chordata Bilaterian deuterostomes Derived ...

* Class Amphibia Class Reptilia Class Aves Class Mammalia Oldest class of tetrapods 4000 extant species of frogs, ...

Gnathostomes Vertebrates with jaws. Derived Characters Jaws Duplication of Hox genes: Gave rise to larger brains, enhancing smell and vision.

Gila Monster. Coral Snake. Most lizards small (to 16 mm), though Komodo Dragon to. 3 m ... this evolutionary remodeling are evident in a succession of fossils. ...

THERIAN ORIGINS

Vertebrate Evolution and Diversity Phylum Chordata Subphylum Urochordates Subphylum Cephalochordates Subphylum Vertebrates Lancet Tunicate

More complicated ecological interactions. 2 . Terrestrial ... Opossum (Didelphis virginiana) South North America. Brushtail possum (Trichosurus vulpecula) ...

Class Osteichthyes: bony fish (salmon, trout) ... bald eagle) Swimming bird (such as a duck) Subphylum Vertebrata. Class Mammalia ...

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Chapter 22 Descent with Modification A Darwinian View of Life

Animals and Animal Diversity The Nitty-gritty! Note: There is no red on this powerpoint, all non-essentials were deleted from the notes. Just imagine that everything ...

... infernalis (Big Bend National Park, Texas, photo:H.W.Greene) ... Longhorns (Bos taurinus, Wichita Mountains, OK; photos:H.W.Greene) What is a mammal? ...

Macroevolution Evolutionary change above a species Evolution on a grand scale Species in a new habitat Mass extinctions Early Earth ... EARLY TETRAPODS ...