'Marine worms' presentation slideshows

Chapter 33 Invertebrates

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Chapter 13

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CHAPTER 14

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Last common ancestor of all animals - multicellular, heterotrophic - asymmetry (= no symmetry)

Sponges. Last common ancestor of all animals - multicellular, heterotrophic - asymmetry (= no symmetry) - cellular level of organization (no tissues) - intracellular digestion (ate bacteria) - similar to choanoflagellate protists. Sponges. Cnidarians.

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Annelidae

Annelidae. These guys try to worm their way into all ways of life. Typical dissection approach. I. General Characteristics. A. Bilateral symmetry B. Cephalization C. Coelom D. Complete digestive tract E. Segmentation F. Nephridia G. Circulatory system H. Hydrostatic skeleton.

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Lecture #14 Date _____

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Phylum Pogonophora

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Chapter 15.2

Chapter 15.2. Mollusks and Annelid Worms. Mollusks. Snails, slugs, clams, oysters, squids and octopuses are all mollusks Most mollusks fit into 3 classes Gastropods which include slugs and snails Bivalves which include clams and other shellfish that have 2 shells

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KEY CONCEPT Flatworms, mollusks, and annelids belong to closely related phyla.

KEY CONCEPT Flatworms, mollusks, and annelids belong to closely related phyla. reproductive system. eyespot. head. pharynx. mouth. sucker. gut cavity. Flatworms are simple bilateral animals. Flatworms have a solid body and incomplete or absent gut.

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Chapter 13

Chapter 13. Annelida: The Merametric Body Form. Phylum Annelida. Segmented worms believed to have evolved in the sea where two-thirds still live Other one third are terrestrial Fossils found up to 530 million years old Range from 1 mm to 3 M long. Characteristics of Annelids.

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KEY CONCEPT Flatworms, mollusks, and annelids belong to closely related phyla.

KEY CONCEPT Flatworms, mollusks, and annelids belong to closely related phyla. reproductive system. eyespot. head. pharynx. mouth. sucker. gut cavity. Flatworms are simple bilateral animals. Flatworms have a solid body and incomplete or absent gut.

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KEY CONCEPT Flatworms, mollusks, and annelids belong to closely related phyla.

KEY CONCEPT Flatworms, mollusks, and annelids belong to closely related phyla. reproductive system. eyespot. head. pharynx. mouth. sucker. gut cavity. Flatworms are simple bilateral animals. Flatworms have a solid body and incomplete or absent gut.

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MARINE WORMS

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Chesapeake Bay Research

animals.nationalgeographic.com /animals/invertebrates/oyster/. Chesapeake Bay Research. BY: Kayann Straker. animals.nationalgeographic.com /animals/invertebrates/oyster/. Why is it important to have a variety of animals in the Bay ?.

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Ches apeake Bay Research

Ches apeake Bay Research. By: Khan Abaad. Why is it important to have a variety of animals in the Bay?.

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Marine Worms

Marine Worms. Justin Adair. Any worm who lives in a marine environment is considered as marine worm. Marine worms have special tentacles used for taking in oxygen and letting out carbon dioxide. They also use their tentacles for reproduction. Tube Worms.

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