lecture11_20_09

lecture11_20_09 - Practical examination sign-up and...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Practical examination sign-up and reporting procedures. (Wed. 11/17 -- 11/23) 1.Enter the sign-up program through Bio200 (www.Bio200.buffalo.edu) 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 EVOLUTION Which is not correct about not this animal? this 1) It belongs to the Phylum 1) Chordata Chordata 2) It has a ventral nerve 2) cord cord 3) All its mitochondria came 3) from its mother from 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? early A) Greater strength for the body B) Regulation of calcium in the B) blood blood C) For muscle attachment D) To align with the D) segmentation of the muscles segmentation E) As a preadaptation for E) locomotion locomotion 27% 23% 20% 17% 13% 40 1 2 3 4 5 Advantages of Land Advantages New foods Less competition Escape from predators More oxygen Warm temperatures Disadvantages (Problems) of Land Disadvantages Physical Support Water balance Temperature variations Trends We’ll Discuss Trends Fins to Limbs Respiration Temperature Regulation Water Balance Reproduction Physical Support (From Fins to Limbs) (From Physical Support Physical (From Fins to Limbs) Amphioxus Amphioxus No paired fins Physical Support Physical (From Fins to Limbs) Ostracoderms Ostracoderms Physical Support Physical (From Fins to Limbs) Placoderms Placoderms Physical Support Physical (From Fins to Limbs) Ray Finned Fishes………………….. Ray Paired Paired pectoral & pelvic fins pelvic Physical Support Physical (From Fins to Limbs) Lobe Finned Fishes……………………........ Lobe Paired pectoral & pelvic fins Physical Support Physical (From Fins to Limbs) Physical Support Physical (From Fins to Limbs) Reptiles.....and the alligator crawl Physical Support Physical (From Fins to Limbs) How many fingers & toes? How How many fingers & toes? How But… But… Did it have to be that way? How many toes? How Which organism is not considered a tetrapod? A not tetrapod is an animal that has 4 limbs or its ancestor had 4 limbs. ancestor 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 Respiration Agnatha----Gills Fish----Gills & lungs Amphibians----Gills (larvae); lungs (adults) Reptiles, birds, mammals----Lungs Respiration Respiration Agnatha----Gills Fish----Gills & lungs Respiration Respiration Respiration Respiration Bird Lungs Respiration Respiration Human Lungs Put these in the order of their appearance in vertebrate evolution: appearance 1) lungs 2) backbone 3) mitosis 4) stapes 5) notochord 6) jaws Which of these sequences matches yours? Which 351462 325164 342156 352614 231456 None of the above None 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 Temperature Poikilotherms: Temperature conformers Body temp. Environmental Temperature Temperature Regulation Temperature Homeotherms: Temperature regulators Body temp. Homeotherms P ms er h ot kil oi Environmental Temperature Water Balance Water (Water Loss) Fish----”No problem” Amphibians---- Big problem Moist skin & gills Toads Reptiles----Water 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 Reproduction Fish embryo (larva) Reproduction Reproduction Reptile & bird embryo Reptile 3 embryonic embryonic membranes: membranes: 1) Amnion 2) Allantois 3) Chorion Plus shell Requires Internal Fertilization & Storage of Wastes Reproduction Reproduction Reptiles, birds, mammals = amniotes mammals amniotes ii.e. they have an .e. amniotic membrane amniotic Mammalian Embryo Mammalian Mammalian Embryo Mammalian Mammalian Embryo Mammalian NE X T TI ME ...
View Full Document

Ask a homework question - tutors are online