'Internal shell' diaporamas de présentation

Coelomates

Pay attention to the progression from life originating in water to colonizing dry land in animals, just like in plants - what pre-adaptations were already present in aquatic ancestors that made the transition to land easier?

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The Benthic Zone

The Benthic Zone. Benthic zone is the substrate (floor) on both the shallow continental shelf and the abyss. The substrate is composed of 4 types of sediment: 1. Biogenous or organic greater than 30% organic material Oozes Contain skeletal & fecal remains Terrigenous or lithogenous

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Phylum Mollusca

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Chapter 27 Review Mollusks and Annelids

Chapter 27 Review Mollusks and Annelids. Charles Page High School Dr. Stephen L. Cotton. Chapter 27 Review Mollusks and Annelids. The gills of a clam are located in the mantle The shell of a mollusk consists of calcium carbonate produced by glands in the mantle

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Class Cephalopoda

Class Cephalopoda. Predators specialized for locomotion Cephalopods include octopuses, squid, nautiluses and cuttlefish. Live in marine environments Only some have a shell Foot is modified into tentacles , usually with suckers used to capture prey. Class Cephalopoda.

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Session 2 Shell Fish Identification and Fabrication

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Phylum Mollusca

Phylum Mollusca. Phylum Mollusca One of the oldest and most diverse phyla Second largest phyla of animals Soft-bodied animals with an internal or external shell Have a free swimming larval stage. 27-4 Mollusks. Body Plan. True coelomates

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Phylum Mollusca (Chapter 27.4)

Phylum Mollusca (Chapter 27.4). Please set up your notebook for Cornell Notes. Mollusks Characteristics Soft-bodied w/ external or internal shell Have a free swimming larval stage called trochophore Also appear in annelids. Form and function Body plan Bilaterally symmetrical Four parts

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Phylum Molluska

Phylum Molluska. Characteristics of Mollusks. Aquatic (freshwater, marine) & Terrestrial External or internal shell or no shell Size: small (i.e. grain of sand) to large (20 meter squid) Bilateral Symmetry . Circulatory System of Mollusks.

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Phylum Mollusca

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Mollusks

Mollusks. Tough Softies!. Taxonomic Roadmap. Kingdom: Animalia Phylum: Mollusca (Mollusks) Class: Bivalvia (Bivalves) Class: Cephalopoda (Cephalopods) Class: Gastroboda (Gastropods) Mollusca is the second most diverse (second most number of species) phylum in the animal kingdom!.

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Nautilus Morphology

Nautilus Morphology. Head, tentacles, foot, and hyponome (organ that shoots jets of water to help it move) near the aperture of the body chamber. Visceral mass containing other vital organs is situated to the rear of the body chamber.

483 views • 8 slides