Download Lab Practical Exam Review

Review for Lab Practical Exam - Tuesday, December 13
There will be 25 questions (20 stations + 5 extra questions, 4 points each). They will be
short answer (fill in the blank) questions, not multiple choice. All questions have 2 or more
parts. There will not be a word bank provided (unless noted below with a *).
Things to know/be able to do:
Exercise 4 - Plankton
Identify with microscope, when necessary, the 10 plankton you observed in lab (expect at least 5
of these):
-- diatoms
-- crab (zoea) larvae
-- foraminifera
-- gastropod (veliger) larvae
-- jellyfish
-- starfish (bipinnaria) larvae
-- Portuguese man-of-war
-- comb jellies
-- arrow worms (chaetognaths)
-- copepods (cyclops)
Identify the phylum of each of those plankton (except diatoms and foraminifera).
Know whether each has a holo- or mero-planktonic lifestyle.
Exercise 5 - Lower Marine Invertebrates
Identify these organisms (common name) and know their phylum name:
-- Porifera - sponges
-- Cnidaria - jellyfish, Portuguese man-of-war, hydroids (like Obelia), corals
-- Ctenophora - comb jellies
-- Annelida - sandworm/clamworm (segmented worm)
Identify sponge spicules and spongin with microscope or from a diagram.
Exercise 6 – Marine Molluscs
Identify the phylum (Mollusca), class (Bivalvia, Gastropoda, or Cephalopoda), and common
name of a given mollusc. The specific organisms you might see are:
-- ribbed and blue mussels -- mud snail
-- squid
-- quahog clam
-- slipper shell
-- octopus
-- bay scallop
-- periwinkle
Identify these internal and external features of a clam from a model or drawing: mantle, foot,
gills, siphons, adductor muscles, umbo, hinge ligament. Know the anterior, posterior, dorsal, and
ventral ends.
Identify these internal and external features of a squid from a model or drawing: arms (8),
tentacles (2), siphon, mantle, fins, beak, gills, hearts.
Exercise 7 – Marine Arthropods
Identify the phylum (Arthropoda) and subphylum (Chelicerata or Crustacea) and common name
of a given arthropod. The specific organisms you might see are:
-- blue crab
-- barnacle (shell)
-- horseshoe crab
-- lobster
-- copepod (cyclops)
Identify the following features of a horseshoe crab from a molt or drawing: cephalothorax,
abdomen, tail (telson), compound eyes, book gills.
Identify the following features of a blue crab from a model or drawing: 3 kinds of legs
(claw/cheliped, walking, swimming/paddle), eyestalks, carapace, abdomen (and know the gender
of the crab from the shape of the abdomen).
Exercise 8 - Echinoderms
Identify the common name of these organisms and their phylum (Echinodermata):
--starfish/sea star
--brittle star
--sea urchin
Know that echinoderm larvae have bilateral symmetry and adults have pentamerous (5-way)
radial symmetry.
Identify these external features of a sea urchin from a model or drawing: oral and aboral sides,
spines, tube feet, tube feet pores, mouth.
* Identify these internal features of the starfish water vascular system from a model or drawing:
madreporite, stone canal, ring canal, radial canals (5), ampullae, tube feet.
Exercise 9 - Cartilaginous and Bony Fishes
Identify the phylum (Chordata), subphylum (Vertebrata), and class common name (jawless,
cartilaginous, or bony) of lampreys, sharks, and bony fishes.
* Identify these external features of a shark and bony fish from a model or drawing: eyes,
mouth, nostrils, gill slits/cover, dorsal fins (anterior and posterior), pectoral fins, pelvic fins, anal
fin, caudal fin.
* Know that the upper and lower lobes of the caudal (tail) fin of sharks tend to be unequal
(heterocercal), while the lobes of bony fishes tend to be equal (homocercal).
* Identify with microscope three types of scales (cycloid, ctenoid, and placoid) and which class
of fishes they belong to.
Know these sensory organs of sharks: eyes, nostrils, lateral line, ampullae of Lorenzini.
Distinguish between the genders in sharks (males have claspers on their pelvic fins, females have
broader pelvic fins and no claspers).
Identify these internal features of a shark and bony fish from a model or drawing: gills, heart,
liver, stomach, intestine.
Know about buoyancy control in sharks (liver: size, composition) and bony fishes (swim
bladder).
Know the location and function of the spiral valve.
Diatoms
Foraminifera
http://www.whoi.edu/cms/images/oceanus/forams_83680_121062.jpg
Jellyfish
Portuguese Man-of-war
http://www.whoi.edu/cms/images/Physalia_2_110693.jpg
Comb jellies
http://www.wildabouttheworld.com/gallery/showphoto.php/photo/2809
Arrow worm
Copepod
Crab (zoea) larvae
http://www.dfw.state.or.us/mrp/shellfish/crab/images/zoea_scale_ODFW.jpg
Gastropod (veliger) larvae
Starfish (bipinnaria) larvae
Sponges
Spongin
http://image.made-in-china.com/2f0j00iBmtrFWykIcv/Wool-Sea-Wool-Natural-Sea-Sponges-WANS-11-.jpg
Sponge spicules
Hydroids
Corals
Sandworm/clamworm
http://openlearn.open.ac.uk/file.php/2659/!via/oucontent/course/410/s193_1_012i.jpg
Ribbed mussel
Blue mussel
http://seagrant.uaf.edu/news/04ASJ/images/mussels350.jpg
Quahog clam
Bay scallop
http://www.marlin.ac.uk/imgs/o_mermer.jpg
http://www.nematodes.org/NeglectedGenomes/MOLLUSCA/AIC.jpg
Mud snail
Periwinkle
Slipper Shell
http://www.gastropods.com/Shell_Images/G-L/Ilyanassa_obsoleta_1.jpg
http://www.manandmollusc.net/lesson_plan_files/crepidula.jpg
http://www.gastropods.com/Shell_Images/G-L/Littorina_littorea_2.jpg
Squid
Octopus
http://www.mexfish.com/fish/hbsquid/hbsquidsnowd.jpg
http://shedm.files.wordpress.com/2011/10/0156015.jpg
Blue crab
Lobster
http://www.connecticutvalleybiological.com/images/p1820.jpg
http://marlin.bio.umass.edu/biology/kunkel/fish/albatross-iv/al0203/P0005812a.JPG
Barnacles
Horseshoe crab
http://lorihinrichsen.com/images/InProcessLH/in-process_Feb_2008/Barnacles.JPG
Sea star/starfish
Brittle star
http://images.marinespecies.org/resized/32047_asterias-rubens.jpg
Urchin shell/skeleton/test
http://www.shells-of-aquarius.com/images/pink-dyed-sea-urchins.jpg