'Simplest animals' diaporamas de présentation

Chapter 26: Sponges, Cnidarians, and Unsegmented Worms

Chapter 26: Sponges, Cnidarians, and Unsegmented Worms. Section 1: Introduction to the Animal Kingdom. Introduction to the Animal Kingdom. The animal kingdom is the most diverse in form Each animal performs the essential functions of life in its own special way

1.41k views • 94 slides

The Simplest Animals

The Simplest Animals. Sponges Jellyfish Flatworms Roundworms. Many images from: www.oceanicresearch.org/.../cnidarian.html. The Simplest Invertebrate Phyla are: -without a skeleton -without segmentation:. Porifera (sponges)

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Introduction to animals

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ANIMAL NERVOUS SYSTEM

ANIMAL NERVOUS SYSTEM . Chapter 6. Outline. Overview CNS PNS Neurons: Structure and Function Resting potential Action potential Muscle contraction and twitch Nervous disorders. Nervous systems as a whole.

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The Brain and the Nervous System

The Brain and the Nervous System. What do we know about the brain and the nervous system?.

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Overview of Animal Diversity

Overview of Animal Diversity. Chapter 32. General Features of Animals. Animals are a diverse group of consumers that share major characteristics All are heterotrophs All are multicellular Cells do not have cell walls Most are able to move All are very diverse in form and habitat

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Chapter 29- Comparing Invertebrates

Chapter 29- Comparing Invertebrates. I. Invertebrate Evolution. Origin of the Invertebrates 1. Invertebrates fossils have been found to date between 610-570 million years ago. 2. Now molecular paleontology studies the fossils DNA.

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Programmed Cell Death

Programmed Cell Death. Why do some cells need to die?. To accomplish morphogenetic ends , eg. Separation of fingers during embryogenesis of the hand

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REVIEW

REVIEW. How many different donors of chromosomes and genes are required for sexual reproduction? Name three living species that use sexual reproduction? What percentage of chromosomes and genes does an offspring receive from their father?. What is asexual reproduction?.

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Phylum Porifera

Phylum Porifera. Phylum Porifera. Sponges are the simplest animals Radially symmetrical Acoelomate Body resembles a perforated sac. Has inner cavity called spongocoel Has large opening called osculum Lining body are cells flagellated cells called choanocytes

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Phylum Porifera

Phylum Porifera. Phylum Porifera. Sponges are the simplest animals Radially symmetrical Acoelomate Body resembles a perforated sac. Has inner cavity called spongocoel Has large opening called osculum Lining body are cells flagellated cells called choanocytes

311 views • 4 slides