'Nerve cords' diaporamas de présentation

Animal Evolution

Animal Evolution. Porifera sponges. 5,000 living sponge species Three Main Groups: hexactineuida (glass sponges) demospangia calcarea (calcareous sponges) no coelom, organs, or skeleton no urinary, cardiovascular, respiratory or nervous system cellular grade of organization .

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Neural Control

Neural Control. Chapter 33 Part 1. Impacts, Issues In Pursuit of Ecstasy. Neural controls maintain life; drugs like Ecstasy flood the brain with signaling molecules and saturate receptors, disrupting these controls. Fig. 33-1a, p. 552. Fig. 33-1b, p. 552. Fig. 33-1c, p. 552.

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Chapter 32 Neural Control Sections 1-6

Chapter 32 Neural Control Sections 1-6. 32.1 In Pursuit of Ecstasy. Ecstasy (MDMA) is a psychoactive drug, similar in structure to methamphetamine Drugs like MDMA flood the brain with signaling molecules and saturate receptors, disrupting neural controls

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Invertebrates

Invertebrates. Chapter 2 March/April, 2012. Invertebrates. Invertebrates 1. Animals without a backbone 2. Come in many different shapes and sizes Can be compared by looking at: 1. Type of body plan 2. Whether or not the animal has a head 3.The way food is digested. Body Plans.

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Introduction to the Animal Kingdom

Introduction to the Animal Kingdom. Invertebrates vs Chordates. Invertebrates Includes 95% of animals Includes 33 Phyla No vertebral column/backbone Chordates Includes 5% of animals Includes Phylum Chordata 4 Characteristics (at some point during life) Nerve cord and/or Vertebral Column

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Chapter 3 Overview

Chapter 3 Overview . Taxonomy, Habitat and Genetics . What is Taxonomy?. How many species of fish are there?. 24,000 are identified each year new species are found. There are thousands of other aquatic species of crustaceans, mollusks, aquatic plants and other aquatic organisms. .

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Flatworms/ Roundworms

Flatworms/ Roundworms. By: Alexey Pomogaev, Daniel Cho, Connor Healey. Flatworms and Roundworms. Flatworms Phylum- Platyhelminthes Class- Turbellaria, Cestoda, Trematoda, Monogenea Families- 102 variations Roundworms Phylum- Nematoda Class- Adenophorea, Secernentea, Families-

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Planaria (Cross-eyed worm)

Planaria (Cross-eyed worm). FLATWORMS (Platyhelminthes). INVERTEBRATES no backbone PROTOSTOMES blastopore becomes MOUTH. ACOELOMATES. RESPIRATORY. Breathe through their skin. GASTROVASCULAR CAVITY (Combination Digestive & circulatory). Digestive cavity with 1 opening.

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Chapter 27.1 Flatworms, the Simplest U nsegmented Worms

Chapter 27.1 Flatworms, the Simplest U nsegmented Worms. Hannah Reagan 3 rd period. Introduction . Phylum Platelminhes

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Planaria and their amazing ability to regenerate!

Planaria and their amazing ability to regenerate!. Planaria Background. Planaria belongs to Kingdom Animalia , Phylum Platyhelminthes (flat worms), Class Turbellaria , Order Seriata , and Family Planariidae .

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Arthropods!

Arthropods!. Arthropods:. Arthropods constitute over 90% of the animal kingdom. The word Arthropod literally means jointed legs. ***First phylum to have joints*** They are invertebrates (no backbone) They have true appendages. Muscular-Skeletal.

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Phylum Arthropoda

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