class cephalopoda “head footed” shell in squid and octopus absent or vestigial (serves no...
TRANSCRIPT
Class Cephalopo
da“head
footed”
• Shell in squid and octopus absent or vestigial (serves no obvious purpose)
• Jet propulsion• Ink sac for defense • Foot modified into
arms and tentacles• Marine• All predators• Roughly 700 living
species 1
Links for Cephalopoda..please pay attention most of the test ?s come from the video info
• http://www.youtube.com/watch?v=QMFqV4SJLWg nautilus• http://www.youtube.com/watch?v=lwAqhThd_EQ giant octopus • http://www.youtube.com/watch?v=bBe2KaRuI80 intelligent
octopus • http://www.youtube.com/watch?v=5rqhomPaxhE cephalopod
masters of camo• http://www.youtube.com/watch?v=IyeKbRIQTxs&feature=related
invisible octopus..slowed down• https://
www.youtube.com/watch?v=2x-8v1mxpR0&feature=related meet the cuttlefish
• https://www.youtube.com/watch?v=v8Aw7QroV78 cuttlefish mating rituals
SquidSquid
5
Shell (Pen)Shell (Pen)
Ctenidium (gills)Ctenidium (gills)
FunnelFunnel
SystemicheartSystemicheart
Branchial heartBranchial heart
Squid FemaleSquid Female
7
Ovary with eggsOvary with eggs
Nidamental glandsNidamental glands
Oviducal glandOviducal gland
Oviducal openingOviducal opening
Octopus• Eight arms with
suckers• Crawl or eject
water from siphon
• Change skin color–chromatophores
• Most intelligent invertebrate
9
Intelligent Octopus
11
• http://www.youtube.com/watch?v=bBe2KaRuI80
Nautilus
• Indian & Pacific Ocean @ ~ 1,800 feet
• Avg. life span = 20 years ( unusual – most cephalopods have short life span)
• Average size 8-10 inches in diameter
• Up to 94 tentacles– No suckers
• Shell with many chambers– Lives in outermost
chamber
12
Cuttlefish
14
• http://www.youtube.com/watch?v=2x-8v1mxpR0&feature=related
• http://www.youtube.com/watch?v=v8Aw7QroV78 mating in mozambique
Cephalopod – Master of Disguise
16
• http://www.youtube.com/watch?v=5rqhomPaxhE
• http://www.youtube.com/watch?v=IyeKbRIQTxs&feature=related
Draw & label this..Yes, you need to color it I miss yall!!
Title this PHYLUM MOLLUSCA ORGANIZER *fill in all the missing information!
Each class & example set should be a different color! You may outline them instead of color them in. Choose your own 4 colors!
PHYLUM _________
Class ______ Class ______ Class ______
Examples ..LIST ALL GIVEN FOR EACH
Examples ..LIST ALL GIVEN FOR EACH
Examples ..LIST ALL GIVEN FOR EACH
REVIEW ?s if you have time… these are on test
• 1. Which of the following is NOT a class of phylum Mollusca? a. Gastropoda b. Cephalopoda c. Bivalvia d. Cestopoda e. both c and d
• 2. Mollusks share all but WHICH of the following common characteristics?
a. muscular foot b. mantle c. visceral mass d. radula e. none of these
Answers …. D D