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With Atmosphere
TE = 286 K
Without Atmosphere
TE = 255 K (-18C)
∴“Greenhouse” effect = 31 K
CLAM DISSECTION. CLAMS ARE: Invertebrates- no backbone Protostomes- blastopore becomes mouth
The Bakerian Lecture, 1981: Natural Selection of the ...ebme.marine.rutgers.edu/HistoryEarthSystems/HistEarthSystems...can be natural selection of the chemical elements when ... a
PROTOSTOMES II MOLLUSKSARTHROPODS. MOLLUSKS Clams, snails, slugs, chitons, octopuses Clams, snails, slugs, chitons, octopuses Probably evolved early—after
SURVEY OF THE TETRAPODSmiller.biology.utah.edu/courses/3315/handouts/02_slides.pdf · Synapsids & Origin of Mammals Cynodont Therapsids = sister group of mammals Pelycosaurs = basal
How are worms different?. ALL WORMS are: INVERTEBRATES (no backbone) PROTOSTOMES (blastopore mouth) COELOM TYPES: Flatworms = acoelomates Round worms
Coelomates Protostomes Mouth develops from the blastopore Cleavage is spiral and determinate ALL HAVE A TRUE COELOM!
Annelids The segmented worms. Major Divisions Protostomes Deuterostomes determinate spiral cleavage indeterminate radial cleavage mesoderm from a single
Coelomates: Protostomes and Deuterostomes Protostomes have spiral
Marine Invertebrates (Part 3). Phylogenetics Protostomes (mouth first) Deuterostomes (mouth second) Embryo cell division simple ----------------------------
Pelycosaurs Dominated the late Permian, gave rise to therapsids
Invertebrates 2 Animals - University of Vermontdstratto/bcor12/2019Summer/10_Invertebrates...Invertebrates 2 More Fun facts about: • Protostomes – Lophotrochozoa – Ecdysozoa
These two Protostomes are important for study of genetics and development
Late Triassic Petrified Forest, St. John’s, Arizona. Ghost ... › HistoryEarthSystems › HistEarthSys2006 › Week11b.pdfHadrosaurs and Tyrannosaurs Late Cretaceous assemblage
5. Major “Invertebrate” Phyla a. Porifera: Sponges b. Cnidaria: Corals, Hydra, Anemones, Jellyfish Protostomes - Lophotrochozoans
PROTOSTOMES: LOPHOTROCHOZOAfaculty.fmcc.suny.edu/freeman/webpages/generalbio1/... · Describe features of the Lophotrochozoa phyla: Platyhelminthes, Annelida, and Mollusca. ... Organs
5. Major Phyla a. Porifera: Sponges b. Cnidaria: Corals, Hydra, Anemones, Jellyfish Protostomes: Lophotrochozoans c. Platyhelminthes: Flatworms d. Annelida:
BIS2C: Lecture 29: Triploblasts: Protostomes: Ecdysozoans I
Phylum Molluska Over 50,000 speciesOver 50,000 species Coelomate, Protostomes, Bilaterally symmetricalCoelomate, Protostomes, Bilaterally symmetrical Mostly
Animals - Protostomes
Evolution: from reptiles (a branch called therapsids) ~ 150 mya What event (65 mya) provided mammals a window of opportunity?
Mammalogy: Introduction to Mammals. General ~ 5000 species in ~26 orders >500 new species since 1982; ~ 10 /year monophyletic group derived from therapsids,
Section 12.6 Mammals. The Rise of Mammals The ancestor of modern mammals appear to have been reptiles called therapsids which lived 240 million years
Trait Pelycosaurs Therapsids Cynodonts Posture:sprawlingintermediateupright
1,000,000 + species “jointed appendages” Eumatazoan, triploblastic coelomates Bilaterally symmetrical protostomes Major features of Arthropods: 1.Evolved
Sponges Cnidarians acoel flatworms Deuterostomes Protostomes the clade of Bilaterian animals excluding the acoels was recently named Nephrozoa – “animals
Coelomates: Protostomes and Deuterostomes Protostomes … Diversity... · Coelomates: Protostomes and Deuterostomes Protostomes have spiral ... Repeated movement results in locomotion
Planaria (Cross-eyed worm). FLATWORMS (Platyhelminthes) INVERTEBRATES no backbone PROTOSTOMES blastopore becomes MOUTH
Protostomes Coelomates Mouth develops from the blastopore Cleavage is radial and determinate ALL HAVE A TRUE COELOM!
Protostomes - FM Faculty Web Pagesfaculty.fmcc.suny.edu/freeman/webpages/generalbio1/sl… · · 2013-02-15Protostomes . Porifera Cnidaria Ctenophora Acoelomorpha Rotifera Platyhelminthes
Figure 23.14 Homologous Pathways Specifying Neural Ectoderm in Protostomes (Drosophila) and Deuterostomes (Xenopus) D/V
