Animalia-Adaptation to Land

Animalia-Adaptation to Land - Practical examination sign-up...

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Unformatted text preview: Practical examination sign-up and reporting procedures. (Wed. 11/17 -- 11/23) 1.Enter the sign-up program through Bio200 ( webpage. 2. Select the room, date and time that best fits your schedule. 1.At the bottom of the selection list select the SUBMIT bar. 4. Send yourself an e-mail to remind you of your selection. 5. Print a copy of your e-mailed registration. You must show this printed registration to your T.A. before the registration window closes. You may change your registration at any time before the registration window is closed. AS SOON AS YOU RE-ENTER THE REGISTRATION WINDOW YOUR PREVIOUS REGISTRATION IS NEGATED. If you do change your registration, print your new registration email, and immediately destroy the printed copy of your previous registration. If a problem should arise regarding your test date and time, you must have a printed copy of your most recent registration to be admitted to the test room. DO NOT BOOK-MARK THE REGISTRATION PAGE. If you ever re-enter the registration form from the bookmark, you will nullify your registration, and not be able to sign-up again You must arrive at least 15 minutes before your exam time to check that your name is on the list posted outside the test rooms. The doors to the testing site will close precisely at the time of the exam. Furthermore, if you are late you will receive a zero for the exam. No entry is allowed into the test once the exam begins. VERTEBRATE EVOLUTION II Which is not correct about this animal? 1) It belongs to the Phylum Chordata 2) It has a ventral nerve cord 3) All its mitochondria came from its mother 4) It is a Deuterostomate 5) It is segmented 6) It has 9+2 cilia 17% 17% 17% 17% 17% 17% 45 1 2 3 4 5 6 What is the reason that the video in the last lecture suggested for the advantages of a skeletal system in early fish? A) Greater strength for the body B) Regulation of calcium in the blood C) For muscle attachment D) To align with the segmentation of the muscles E) As a preadaptation for locomotion 27% 23% 20% 17% 13% 40 1 2 3 4 5 Advantages of Land New foods Less competition Escape from predators More oxygen Warm temperatures Disadvantages (Problems) of Land Physical Support Water balance Temperature variations Trends We'll Discuss Fins to Limbs Respiration Temperature Regulation Water Balance Reproduction Physical Support (From Fins to Limbs) Physical Support (From Fins to Limbs) Amphioxus No paired fins Physical Support (From Fins to Limbs) Ostracoderms Physical Support (From Fins to Limbs) Placoderms Physical Support (From Fins to Limbs) Ray Finned Fishes....................... Paired pectoral & pelvic fins Physical Support (From Fins to Limbs) Lobe Finned Fishes................................ Paired pectoral & pelvic fins Physical Support (From Fins to Limbs) Physical Support (From Fins to Limbs) Reptiles.....and the alligator crawl Physical Support (From Fins to Limbs) How many fingers & toes? How many fingers & toes? But... Did it have to be that way? How many toes? Which organism is not considered a tetrapod? A tetrapod is an animal that has 4 limbs or its ancestor had 4 limbs. 1) Fruit bat 2) Horse 3) Robin 4) Frog 5) Snake 6) All are tetrapods 0% 1 0% 2 0% 3 0% 4 0% 5 45 0% 6 Respiration Agnatha----Gills Fish----Gills & lungs Amphibians----Gills (larvae); lungs (adults) Reptiles, birds, mammals----Lungs Respiration Agnatha----Gills Fish----Gills & lungs Respiration Respiration Bird Lungs Respiration Human Lungs Put these in the order of their appearance in vertebrate evolution: 1) lungs 2) backbone 3) mitosis 4) stapes 5) notochord 6) jaws Which of these sequences matches yours? 351462 325164 342156 352614 231456 None of the above A) B) C) D) E) F) 100% 90% 80% 70% 60% 50% 40% 30% 20% 10% 0% 0% 0% 0% 0% 0% 45 0% Temperature Regulation Poikilotherms: Temperature conformers Body temp. Environmental Temperature Temperature Regulation Homeotherms: Temperature regulators Body temp. Homeotherms P ms er h ot kil oi Environmental Temperature Water Balance (Water Loss) Fish----"No problem" Amphibians---- Big problem Moist skin & gills Toads Reptiles----Water Dry loss dead skin, scales Good kidney Internal lungs Birds & mammals----Water loss Dry dead skin & fur & feathers Very good kidney Internal Lungs Reproduction Fish embryo (larva) Reproduction Reptile & bird embryo 3 embryonic membranes: 1) Amnion 2) Allantois 3) Chorion Plus shell Requires Internal Fertilization & Storage of Wastes Reproduction Reptiles, birds, mammals = amniotes i.e. they have an amniotic membrane Mammalian Embryo Mammalian Embryo Mammalian Embryo NE X T TI ME ...
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