'Class oligochaeta' presentation slideshows

Coelomate Invertebrates

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How to Use This Presentation

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Phylum Annelida

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Phylum Annelida

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Phylum Annelida

Phylum Annelida. Segmented Worms. Phylum Annelida. Annelids are s egmented worms. They have bodies composed of a series of fused rings. Earthworms, leeches, clam worms. Phylum Annelida. Old Traits Coelomate (body cavity) Closed circulatory system Cephalization (have a head)

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CHAPTER 17

CHAPTER 17. Annelids. Characteristics. Diversity Annelids exhibit segmentation or metamerism Bodies composed of serially repeated units Each unit contains components of most organ systems Evolution of metamerism allowed much greater complexity in structure and function

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CHAPTER 17

CHAPTER 17. Annelids. Characteristics. Diversity Annelids exhibit segmentation or metamerism Each unit contains components of most organ systems Evolution of metamerism allowed: Increased burrowing efficiency more sophisticated nervous system Provided a safety factor

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Chapter 35

Chapter 35. Section 2 Annelida. Characteristics Annelida. Segmented worms Coelomates- true body cavity Setae - external bristles Parapodia - fleshy protrusions Three classes: Oligochaeta, Polycheata, & Hirudinea. Class Oligochaeta. Live in the soil, freshwater, and have no parapodia

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Phylum Annelida

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Phylum Annelida

Phylum Annelida. The Segmented Worms. Symmetry and Body Plan. Bilateral symmetry Tube-within-a-tube plan Separate mouth and anus Coelomate (true body cavity) Segmented (repeated body features). Digestion and Excretion. Digestion : Complete digestive tract.

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Invertebrates 3

Invertebrates 3. Nematoda and Annelida. Phylum Nematoda: The roundworms. Evolutionary relationships. Nematode body cavity: pseudocoelom. Mesoderm on inside of body wall, but not surrounding gut. Body plan. Feeding/digestive system Nematodes suck! Complete digestive system Gas exchange

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Annelida

Annelida. By: Jessica Livingstone, Mark McPhee, Raouf Fellah, Melissa Merks. Introduction. Kingdom Animalia Superphylum Lophtrochozoa Phylum Annelida. Introduction. How many? About 17 000 types found all over the world What are they ? Class Polychaeta (marine worms)

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Phylum Annelida: Segmented Worms

Phylum Annelida: Segmented Worms. Phylum Annelida. Class Oligochaeta, earthworms Class Polychaeta, (Poly = many, Chaeta = bristle) Class Hirundinea, leeches. Characteristics of Annelids. Coelomates Have segments Highly specialized organ systems.

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Phylum Annelida (Chapter 27.3)

Phylum Annelida (Chapter 27.3). Please set up your notebook for Cornell Notes. Annelids Characteristics Body divided into segments separated by walls called septa Have a coelom ? coelomates Some worms have bristles called setae attached to each segment

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Phylum Annelida (Segmented Worms)

Phylum Annelida (Segmented Worms). 15,000 Annelid species Bilaterally symmetrical coelomates Coelomes divided into partitions by septa Inhabit marine, fresh water, & moist environments Has complex digestive system Has closed circulatory system Epidermis is primary gas exchange organ

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Phylum Annelida (Segmented Worms)

Phylum Annelida (Segmented Worms). 15,000 Annelid species Bilaterally symmetrical coelomates Coelomes divided into partitions by septa Inhabit marine, fresh water, & moist environments Has complex digestive system Has closed circulatory system Epidermis is primary gas exchange organ

86 views • 7 slides

Phylum Annelida

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