Marine Invertebrates Anatomy &
Physiology Survey, pt. 1
• Phylum Porifera -____________________
• Use Living Ocean, pp.146-155.
• Comparison between natural and synthetic sponge
texture. Draw and label.
• Determine which is more absorbent. Describe how you
did this.
• Drawing from p.153.
• Drawing from life. Show how water moved through your
sponge.
• What kind of symbiosis often involves sponges?
• Answer questions 6,7,9,12 on p. 157.
• Fill out the Animal Phyla Comparison Chart for Porifera.
Marine Invertebrates – Anatomy &
Physiology Survey, pt.2
• Phylum Cnidaria – includes __________, _____
__________, and __________.
• Use pp.159 - 177
• Draw a nematocyst from fig 3-3, p. 162.
• Draw a nematocyst from life.
• Draw fig. 3-7, p. 167.
• Draw fig. 3-6, p. 166.
• Where’s the cnidarian’s ‘brain’?
• Fill out the Animal Phyla Comparison Chart for
Cnidaria
Marine Invertebrates – Anatomy &
Physiology Survey, pt. 3
• Read pp. 200 – 201.
• Worms: What two phyla include marine
worms?
• How is their body plan different from
Cnidarians and Poriferans?
• How do marine worms compare with their
aquatic cousins?
• Fill in the worm sections on your Phylum
Characteristics Chart.
Marine Invertebrates – Anatomy &
Physiology Survey, pt. 4
Phylum Mollusca – includes 4 classes. Give names and examples.
Name and describe the 3 basic characteristics of mollusks.
Lifestyles of the Beautiful and Benthic:
What is the diet of these organisms… (list food items, then write
______vore)
1.
Lightning Whelk
2.
Atlantic Moon Snail
3.
Conch
4.
Abalone
5.
Cowrie
6.
Olive
7.
Florida Auger Snail (Terebra floridana)
8.
Murex Snail
9.
Chiton
10.
Limpet
Lifestyles of the Gooey, Gross and Angelic:
Look up pictures of living geoducks, angelwings, and Eastern Oysters. On
the geoducks and angelwings, what is the structure that stands out?
What is its purpose? Why does the oyster not have this?
Marine Invertebrates – Anatomy &
Physiology Survey, pt. 5
Lifestyles of the Intelligent and Tentacled:
• Besides the squids and octopi, there are many other cephalopods. Name
two other extant as well as two extinct examples.
• Draw an Octopus eye in cross-section. How does this compare with ours?
• Squids and octopi are all predators. What do their mouths look like? Draw a
cephalopod mouth. How is this different from the gastropods?
•
•
•
•
How does a Chambered Nautilus swim and maintain buoyancy?
Since only the shells of fossil cephalopods have been preserved, how do
we know that they were actually “tentacle-heads”?
What evidence is there that Cephalopods are the most intelligent of
invertebrates?
Fill out the Animal Phyla Comparison Chart for Mollusca
Marine Invertebrates – Anatomy &
Physiology Survey, pt. 6
• Phylum Arthropoda – includes the Class
Malocostraca – the _____________.
Characteristics of Class Malacostraca
- exoskeleton made up of __________.
- 2 body segments - __________ and ________.
- _____ pairs of antennae (__________ function)
- _____ pairs of mouthparts (__________ function)
- _____ pairs of thoracic legs (__________ function)
- _____ pairs of abdominal legs ( ________ function)
- ____ pair of gonophore ( ____________ function)
- Eyes stalked or sessile
Crustacean Reproduction
• Find out how crustaceans reproduce. Draw a life cycle,
being sure to include drawings of actual baby crabs.
• What kind of lifestyle do most crustaceans live as adults? As
babies?
• Construct a cladogram showing the evolutionary relationship
of these local crustaceans: Blue Crab, Fiddler Crab, Hermit
Crab, Barnacle, Brown Shrimp, and Spiny Lobster. Refer to
the site
http://ccl.northwestern.edu/simevolution/obonu/cladograms/
Open-This-File.swf for instructions on constructing
cladograms
• Fill out the Animal Phyla Comparison Chart for Arthropoda
Marine Invertebrates – Anatomy &
Physiology Survey, pt. 7
• Phylum Echinodermata – includes 5 classes. Give
Names and Examples.
• ALL echinoderms are __________. They are also all
______________ as adults.
• Draw the life cycle of an echinoderm. How do the life
stages differ regarding symmetry?
• All adult echinoderms have a “star” pattern present in
their skeleton. What is the term for this?
• What are tube feet, what is their function, and how do
they work?
• What do you have in common (developmentally) with an
echinoderm?
Marine Invertebrates – Anatomy &
Physiology, Part 8
• Phylum Chordata – includes the
vertebrates as well as some invertebrates.
• Go to
http://step.nn.k12.va.us/science/zo/ppt/Inv
ertebrate_Chordates.ppt and take notes.
• Fill out the Animal Phyla Comparison
Chart for Chordata. TURN IN for a grade!
More Salty, Spineless Fun!
Visit a seafood market. List all the marine
invertebrates you see. By and large, what
group(s) dominate(s)? (Turn in for an
EXTRA daily grade).