'Class turbellaria' diaporamas de présentation

Phylum Platyhelminthes (flatworms)

Phylum Platyhelminthes (flatworms). A phylogeny of Animalia. Platyhelminthes. Bilateria. Phylum Platyhelminthes. The Flatworms Part 1: Free-living Flatworms. Emerging Patterns in Evolution. Bilateral symmetry Dorsal & ventral, anterior & posterior

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Lab 1 Microscopy

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Invertebrate Evolution

Invertebrate Evolution. Chapter 18. Defining Animals. Multicellular, heterotrophic eukaryotes that obtain nutrients by ingestion or eating food No cell walls for structure Joined by extracellular proteins and intercellular junctions

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Lab

Lab. Worms, worms & worms. Class Turbellaria. planaria dugesia. Planaria. Dugesia. Asexual reproduction. Class Trematoda. male. male. female. female. Class Cestoida. tapeworm. scolex. tapeworm oncospheres. tapeworm cystericoids. tapeworm oncosphere. pinworm cystericoids.

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Unsegmented Worms

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Competition in Triclads

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Unsegmented Worms

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Unsegmented Worms

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Kingdom Animmalia

Kingdom Animmalia. By Kendall Reyes Diana Ramirez Itcelia Segoviano. Porifera. They feed through pores on their outer walls. Porifera are unidirectional driven by flagella. They have cellular level organization Different cells perform different functions.

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Phylum Platyhelminthes

Phylum Platyhelminthes. Phylum Platyhelminthes. 20,000 species. Bilateral symmetry. Flattened dorso-ventrally. Triploblastic. Cephalized !!!. Phylum Platyhelminthes. Class Turbellaria. Order Acoela. Small flatworms with no permanent gut cavity. Free-living, marine and brackish water.

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Platyhelminthes The Flatworms

Platyhelminthes The Flatworms. Pechenik: 34,000 spp (Brusca & Brusca: 20,000 spp) Characteristics: Triploblastic Ectoderm, mesoderm, endoderm Acoelomate Bilateral symmetry (w some cephalization) Protonephridia = Organs for excretion/osmoregulation Flatness allows diffusion for gas exchange

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Label the coelom types

PLATYHELMINTHES & NEMATODA The answers will be shown when you click the mouse so answer all the questions before you click. Label the coelom types. Acoelomate Pseudocoelomate Coelomate. Fill in the blanks. Phylum Platyhelminthes Class Turbellaria Class Trematoda

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Label the coelom types

PLATYHELMINTHES & NEMATODA The answers will be shown when you click the mouse so answer all the questions before you click. Label the coelom types. Acoelomate Pseudocoelomate Coelomate. Fill in the blanks. Phylum Platyhelminthes Class Turbellaria Class Trematoda

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Flatworms/Roundworms

Flatworms/Roundworms. Phylum Platyhelminthes platy-flat, helminth-worm three classes 1. Class Turbellaria 2. Class Cestoda 3. Class Trematoda Bilateral symmetry Non-segmented no respiratory or circulatory systems: depend on diffusion to transport nutrients.

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CH34: Phylum Platyhelminthes

CH34: Phylum Platyhelminthes. Flatworms. Characteristics of Platyhelminthes. Thin, flat body (acoelomates) Bilateral symmetry 3 tissue layers Endoderm Ectoderm Mesoderm organs and muscles, not present in Cnidarians or Porifera Cephalization. Free-living flatworms are carnivores

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