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CSU - BC 103 - LIFE 103- Exam 3 - Study Guide

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CSU - BC 103 - LIFE 103- Exam 3 - Study Guide

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background image 5 5 5 1) a. Match the following groups with its description: Metazoa  mouth develops first  Deuterostomes true tissues Bilateria multicellularity/tissues Protostomes  bilateral symmetry, triploblastic Eumetazoa anus develops first, then mouth b. Organize the above developments chronologically through evolutionary time by placing them 
on the proper number on the tree:
c. Place the phylum from the big 9 on the tree, using the following hints if needed (because it’s 
sorta outrageous what they expect us to memorize)…
Sponges (have a lot of POREs) are the most basic. Although Platyhelminthes, Annelida, and Nematoda are all “worms”, Nematoda are more
closely related to Arthropoda, while Platyhelminthes and Annelida are more closely 
related to the phylum of animals with a soft body and calcium carbonate shell.
We humans (think about our notochord) develop an anus before our mouth. In lab, we studied Cnidaria in the same lesson as Porifera. Echinodermata are deuterostomes. Choanoflagella
1 (1) 5 2 3 Lophotrochozoa 4 Ecdysozoa
background image 2. With what group on the above tree did a coelom originate? (Hint: diploblasts cannot have a 
_______________________ 3. Which of the following is NOT a characteristic of all animals? a. multicellularity b. move at some stage in life
c. specialized cells to organize movements
d. ingestive heterotrophs
e. all of the above are characteristics of all animals
4. What are the 3 major clades of Bilateria? a. Deuterostomia, Lophotrochozoa, Ecdysozoa
b. Echinoderms, Chordata, Protostomia
c. Nematoda, Arthropoda, Deuterostomia
d. Chordata, Arthropoda, Platyhelminthes
5. In psuedocoelomate body plans, the fluid filled cavity is… a. in between the endoderm and mesoderm
b. completely enclosed by the mesoderm
c. not present
d. completely enclosed by the endoderm
6. Crustacea are included in what phyla? a. Mollusca
b. Insecta
c. Arthropoda
d. Annelida
7. Gastropods, bivalves, and cephalopods are subcategories in… a. Nematoda
b. Annelida
c. Echinoderms
d. Mollusca
8. True or false: All chordates have a post­anal tail 9. True or false: All chordates have a vertebra. 10. GNAthostomes GNAw with their jAW, which arose from which structure? a. post­anal tail
b. notochord
c. pharyngeal slits
d. dorsal hollow nerve cord
background image 11. OSteichthyes all have an OSsified bony endoskeleton, which developed into (rayed or lobed) fins in Actinopterygii? 12. The next innovation of some lobe­fins was… a. 4 limbs with digits b. the amniotic egg
c. hair
d. improved gills 13. Without looking back on the previous questions at first (then refer to them if you need help), 
put the following innovations of chordate evolution in order of groups growing smaller and more
specific: Tetrapods, osteichthyes, gnathostomes, lobe­fins, vertebrates, amniotes Chordates> __________>__________>__________>___________>___________>__________ 14. The main innovation of amniotes provides for… a. protection of eggs from predators b. reproduction not dependent on water
c. faster movement on land
d. more development to occur while in the egg 15. True or false: Amniotes include reptiles, amphibians, and mammals. 16. Circle which of the following are characteristics of ALL mammals? malleus, incus, stapes, dentary, vibrissae, milk glands, whiskers, homeothermy 17. Place the following in the table (some belong in two columns): ­the environment supplies the organism’s heat ­body temperature varies ­conformers ­regulators ­negative feedback system ­metabolism produces the organism’s heat ­body temperature stays constant ­requires less energy compared to opposite ­insulation (mainly in…) ­behavioral heat absorption mainly used ­(heterothermic animals use both homeothermic and poikilothermic methods. To which  belongs…) aestivation ­hibernation ­torpor ­heterothermy Homeotherm Poikilotherm Endotherm Ectotherm

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School: Colorado State University
Department: Biology
Course: Biology of Organisms-Animals and Plants
Professor: Jennifer Dewey
Term: Fall 2016
Tags: Biology
Name: LIFE 103- Exam 3
Description: Great practice for all of the crazy phyla and characteristics that we must know for this exam! This study guide includes matching, walking through labeling the whole main phylogenetic tree, completing tables, and of course multiple choice.
Uploaded: 04/10/2016
8 Pages 91 Views 72 Unlocks
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