'Phylum nematoda' diaporamas de présentation

Introduction to The Animal Kingdom

Introduction to The Animal Kingdom. http://1.bp.blogspot.com/_59u3hKOMOJg/SwHRScBEepI/AAAAAAAAAAw/QgcoPxESKYI/s1600/Animal_diversity_October_2007.jpg. What is an Animal?. Animals are heterotrophic, eukaryotic and multicellular organisms whose cells lack cell walls

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Kingdom Animalia

Kingdom Animalia. General Characteristics and Invertebrates. What is an animal. Multi-cellular, eukaryotes, heterotrophic organisms whose cells do not have cell walls Animals can have no symmetry, radial symmetry or bilateral symmetry

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Chapter 34

Chapter 34. Section 2 Phylum Nematoda & Rotifera. Phylum Nematoda. Roundworms (pseudocoelomates) Bilaterally symmetrical 1mm-120mm (4 feet) Digestive tract with two openings (mouth & anus) Cuticle - protective covering. Phylum Nematoda.

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The Eukaryotes 12d: Animals

The Eukaryotes 12d: Animals. Helminths & Arthropods. Helminths reduced or no digestive system reduced nervous system no or reduced locomotion life cycle is usually complex. For the CDC versions of parasite life cycles http://www.dpd.cdc.gov/dpdx/Default.htm.

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Worms & Mollusks

Worms & Mollusks. Chapter 27. Flatworms. Phylum Platyhelminthes Bilateral symmetry All 3 germ layers Cephalization One digestive opening Acoelomate. 3 groups of flatworms. 1)turbellarians Class Turbellaria 2)flukes Class Trematoda 3)tapeworms Class Cestoda. turbellarians.

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Structure and Function in Living Things

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Worms and Mollusks

Worms and Mollusks. Biology 112. Flatworms. Phylum Platyhelminthes Soft, flattened worms with tissues and internal organ systems The simplest animals with three germ layers, bilateral symmetry and cephalization Acoelomates No coelom between the tissues of flatworms

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Phylum Porifera Chapter 26

Phylum Porifera Chapter 26. General Characteristics. No mouth, gut, specialized tissues or organ systems Multicellular Kept rigid through deposits of calcium carbonate, silica or spongin Reproduce asexually through budding and/or sexually through sperm and egg

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Phylum Porifera Chapter 26

Phylum Porifera Chapter 26. General Characteristics. No mouth, gut, specialized tissues or organ systems Multicellular Kept rigid through deposits of calcium carbonate, silica or spongin Reproduce asexually through budding and/or sexually through sperm and egg

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This cladogram represent the evolutionary relationships among major groups of animals.

This cladogram represent the evolutionary relationships among major groups of animals. What kinds of organisms most likely gave rise to the first animals? sponges Which evolved earlier, coelom or bilateral symmetry? Bilateral symmetry

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PSEUDOCOELOMATES

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Wormlike Animals

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PSEUDOCOELOMATES

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Phylum Nematoda

Phylum Nematoda. The Roundworms. Phylum Level Characteristics. round, not flattened no segmentation complete digestive system (2 openings: mouth and anus) -soft bodied, hydrostatic skeleton -bilateral symmetry No circulatory system Nutrients and wastes diffuse through body cells.

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Wormlike Animals

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Phylum Nematoda: The Round Worms

Over 80000 species Cylindrical pseudocoeloemates Have effective hydroskeleton and musculature Inhabit aquatic areas. Most are parasitic. Most reproduce sexually. Females can produce ~100,000 eggs a day. Tricininella spiralis causes trichinosis in humans from under cooked pork

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Phylum Nematoda: The Round Worms

Over 80000 species Cylindrical pseudocoeloemates Have effective hydroskeleton and musculature Inhabit aquatic areas. Most are parasitic. Most reproduce sexually. Females can produce ~100,000 eggs a day. Tricininella spiralis causes trichinosis in humans from under cooked pork

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There are two simple phyla or worms: Flatworms and roundworms.

There are two simple phyla or worms: Flatworms and roundworms. Earthworms are not included in these groups. They are more complex. Flatworms belong to the phylum Platyhelminthes. Their bodies are flat. They live in water. Some are parasites, like tapeworms, living on

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Phylum Platyhelminthes (Planarian) and Phylum Nematoda (Vinegar Eel)

Phylum Platyhelminthes (Planarian) and Phylum Nematoda (Vinegar Eel). 7 th Grade Life Science. Classification. Planarian. Vinegar Eels. Kingdom Animalia Phylum Nematoda Class Secernentea Order Rhabditida Family Panagrolaimidae Turbatrix aceti. Kingdom Animalia Phylum Platyhelminthes

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Summary Slides

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