Invertebrates Chapter 24-27.

Slides:



Advertisements
Similar presentations
INVERTEBRATES.
Advertisements

Apply Concepts Design a “new” invertebrate
THE ANIMAL KINGDOM.
Kingdom Animalia Invertebrates.
Sponges Sponges, phylum Porifera, are invertebrates made up of two cell layers. Most sponges are asymmetrical. They have no tissues, organs, or organ.
ANIMAL KINGDOM. INVERTEBRATE ANIMALS Occupy all terrestrial and aquatic ecosystems 34 phyla We will be studying: 1.Sponges and Cnidarians 2.Worms 3.Molluscs.
Invertebrates.  Make up about 97 % of all animal species.
Chapter 22 The Diversity of Life. (V) Kingdom Animalia 9 Major Phyla: Multicellular Ingests food
Kingdom Animalia.
Chapter 25- Intro to Animals. I. Characteristics A. Kingdom Anamalia 1. Multicellular 2. heterotrophic 3. eukaryotic 4. lack cell walls.
Kingdom Animalia. All members of Kingdom Animalia share several common characteristics Multicellular eukaryotes Heterotrophic (must eat) Produce sex cells.
Invertebrate Summary. Phylum Porifera Sponges are classified as animals because they are multicellular, heterotrophic, have no cell walls, and contain.
Invertebrates. Definition Sub-Kingdom of Animals Animals that do not have a backbone at anytime during their development There are 8 major phyla of invertebrates.
Invertebrates Animals Without a backbone. Animals Heterotroph Have symmetry Reproduce either sexually or asexually Move Multicelluar Eukaryotic.
Kingdom Animalia Characteristics EukaryoticMulticellularHeterotrophic –ingest food Specialized cells –Most have tissues No cell wall Most motile Most.
Symmetry.
Invertebrate Diversity
A Very Diverse Kingdom. Kingdom Animalia Characteristics All animals share the following characteristics 1. Eukaryotic 2. Multicellular 3. Reproduce sexually.
The Animal kingdom.
Chapter 18- Evolution of Animal Diversity Animals- multicellular, heterotrophic eukaryotes that obtain nutrients by ingestion First animals- – Probably.
Invertebrates A Survey of Invertebrates. Trends in Invertebrate Evolution Common ancestors of multicellular animals had already evolved two distinct cell.
Chapter 33 ~ n Chapter 33 ~ Invertebrates Parazoa n Invertebrates: animals without backbones n Closest lineage to protists n Loose federation of cells.
INVERTEBRATE COMPARATIVE ANATOMY. Invertebrates make up 95% of the animal world. While there is a lot of variation among invertebrates, all of them lack.
INTRODUCTION TO ANIMALS Chapter 34. Animal Basics  4 Defining Characteristics  Morphology (animal bodies)  Invertebrates versus vertebrates.
A Very Diverse Kingdom. Kingdom Animalia Characteristics All animals share the following characteristics 1. Eukaryotic 2. Multicellular 3. Reproduce sexually.
ANIMAL KINGDOM. ANIMAL CHARACTERISTICS 1) Heterotrophic 2) Eukaryotic 3) Multicellular 4) lack cell walls 5) organized by body plan 6) invertebrates (95%)and.
Animal Kingdom Ch 25 What is an Animal?. Important Animal Facts Animal Kingdom can be split up into main groups, vertebrates (with a backbone) and invertebrates.
AP Biology List of animals  Let ’ s play a game! In order to win, the class must name at least one animal in each of 9 columns. Easy right? We ’ ll see……..
CHAPTER 7 MARINE INVERTEBRATES. OBJECTIVES DESCRIBE THE FEATURES OF INVERTEBRATE MARINE ORGANISMS SPECIFICALLY INCLUDE: CNIDARIANS, WORMS, MOLLUSKS, ARTHROPODS,
Introduction to the Animal Kingdom. Which of these is an “animal”?
Animal Classification THE ANIMAL KINGDOM BASIC CHARACTERISTICS OF ANIMALS: NINE ANIMAL PHYLA INVERTEBRATES: VERTEBRATES (CHORDATES): (1 phylum)
Animal Kingdom Morphology Organizer. Symmetry Radial Symmetry Bilateral Symmetry.
Introduction to Animals Invertebrate Evolution and Diversity
Chapter 7 Marine Invertebrates.
Invertebrates Miss Girvin DTAK.
Unit Four “Evolution, Natural Selection, & Adaptations”
Phylum Porifera Example: Sponges
Kingdom Animalia Invertebrates no backbone
Review Questions 1) What are 4 characteristics that all animals share?
Interaction of Animals
Introduction to Animals *Invertebrates*
45N Invertebrates.
Introduction to the Animal Kingdom
Introduction to animals
Introduction to the Animal Kingdom
Animals Anatomical Terminology Symmetry and Body Plans
Chapter 33 ~ Chapter 33 ~ Invertebrates.
Kingdom Animalia Eukaryotic Multicellular Heterotrophic
Animals Review.
26.1 Invertebrate Evolution and Diversity
Kingdom Animalia.
INVERTEBRATES.
Turn in your phylum requests to the inbox
Invertebrate- animal that does not have a backbone
INTRODUCTION TO ANIMALS
INVERTEBRATES.
Kingdom: Animals Domain Eukarya Domain Eubacteria Archaea
Invertebrates Dr. M. Diamond
Animals Scavenger Hunt
The Animal kingdom.
Part II: Invertebrates
Kingdom Animalia Marine Science
Invertebrates.
26.1 Invertebrate Evolution and Diversity
Animal Phyla.
Sponges Sponges, phylum Porifera, are invertebrates made up of two cell layers. Most sponges are asymmetrical. They have no tissues, organs, or organ.
The Invertebrates .
Sponges Sponges, phylum Porifera, are invertebrates made up of two cell layers. Most sponges are asymmetrical. They have no tissues, organs, or organ.
26.1 Invertebrate Evolution and Diversity
Presentation transcript:

Invertebrates Chapter 24-27

Organizing Your Knowledge Plants Animals Fungi Protists Prokaryotes July 22, 2012 Footer text here

Organizing Your Knowledge Draw a black line between organisms that have simple cells and those that have complex cells. Draw a blue line between organisms that are primarily unicellular and those that are multicellular Separate heterotrophic and autotrophic multicellular organisms with a green line Draw a red line between those heterotrophs that ingest their food and then digest it July 22, 2012 Footer text here

Animal Characteristics Feeding and Digestion Animals – Heterotrophic (feed on other organisms) Support Invertebrates without backbone Exoskeleton or Endoskeleton Vertebrates with back bone Endoskeleton Habitats Live in various habitats because of variations/adaptations July 22, 2012 Footer text here

Animal Characteristics Cell Structure No cell walls Organized into tissues (except sponges) Movement Reproduction Sexual Reproduction Internal and external Hermaphrodites – produce egg and sperm in same animal body (earthworms) July 22, 2012 Footer text here

Animal Characteristics Asexual Reproduction Budding – forms as a growth on the parent Fragmentation – piece breaks off and forms new individual Regeneration – regrow a body part or a body Parthenogenesis – female produces egg that develops without being fertilized Asexual Reproduction Video July 22, 2012 Footer text here

Animal Characteristics Tissue Development Ectoderm Becomes skin/outer layer Mesoderm Middle / muscles, skeleton, gondads, kidneys, circulatory system Endoderm Innermost / lining of digestive tract, liver, pancreas, lungs July 22, 2012 Footer text here

July 22, 2012 Footer text here

July 22, 2012 Footer text here

Terminology Anatomical Terminology Dorsal / Ventral Posterior / Anterior Proximal / Distal Medial / Lateral Cephalization Head region Footer text here

Ways to Group Symmetry Body Cavities Development July 22, 2012 Footer text here

Symmetry Spherical: sphere; divided in half Bilateral: mirror images; halves Radial: divided along any plane Asymmetrical: 2 sides don’t match

Radial / Bilateral Symmetry Activity July 22, 2012 Footer text here

Radial Sea urchin, sand dollar, anemone, hydra, starfish, flower, jellyfish

Bilateral Insect, Monarch butterfly, Blue Flatworm (aquatic, Spider, Crab, Turtle, Cat, Hedgehog

Animals with Radial Symmetry Animals with Bilateral Symmetry Examples: Parts arranged in a circle around central axis Right and left sides No dorsal and ventral surfaces Dorsal and ventral surfaces No anterior or posterior ends Anterior and posterior ends No distinct head Distinct head Sedentary or passively drifting Move actively through environment Encounters environment equally from all directions Head, with sensing organs (eyes, nose), controls environment

Body Cavities Types of Body Cavities July 22, 2012 Footer text here

Body Cavities Hydra x.s

Development Coelomate Animals Protostome Development Mouth develops from first opening Final outcome for each cell can’t be altered Mesoderm splits down the middle to form coelom Deuterostome Development Anus develops from first opening Final outcome for each cell can be altered Two pouches of mesoderm form the coelom.

July 22 2012

July 22, 2012 Footer text here

Phyla Sponges Porifera Jellyfish, anenomes, corals Cnideria: Flatworms Round worms Segmented Worms Clams, Snails, Octopus, Squid Insects, Spiders, Crustaceans Sea urchin, Starfish, Sand dollar Vertebrates Porifera Cnideria: Platyhelminthes: Nematoda: Annelida: Molluska: Arthropoda: Echinodermata: Chordata:

Porifera - Sponges Phylum: Porifera (“pore bearers”) No true tissue Sexual & Asexual reproduction They are: multicellular, heterotrophic, lack cell walls, contain a few specialized cells. Sponges are the most ancient members of the kingdom Animalia.

Phylum: Cnidaria—includes jellyfishes, sea fans, sea anemones, hydras, and corals Cnidarians are aquatic, soft- bodied, carnivorous, radially symmetrical animals with stinging tentacles arranged in circles around their mouths. They are the simplest animals to have body symmetry. Cnidarians

Cnidarians 2 body plans: Sessile polyp and floating medusa No Head or specialized organs for transport of materials Cnidarians

Moon Jelly Life Cycle Video Amazing Jellies Monterey Bay Live Jelly Cam 7/27/2019

Cnidarians Corals live with algae, algae give the different color based on the type of algae

Platyhelminthes: Flatworms Phylum: Platyhelminthes 3 Types: planaria, flukes, tapeworms Flatworms are soft, unsegmented, flattened worms that have tissues and internal organ systems. They are the simplest animals to have three embryonic germ layers, bilateral symmetry, and cephalization. Flatworms do not have coeloms.

Watch the following video and write a “transcript” of what is being said. Planaria Planaria II Tapeworm 7/27/2019

Nematoda - Roundworms Phylum: Nematoda Nematodes are unsegmented worms with: pseudocoeloms (specialized tissues and organ systems) digestive tracts with two openings—a mouth and an anus. Nematodes were once thought to be closely related to flatworms, annelids, and mollusks but have been found to be more closely related to the arthropods.

Nematoda - Roundworms Roundworm Video

Annelids(Segmented worms) Phylum: Annelida (annellus = “little ring”) Includes: Earthworms some marine worms leeches Water or damp soils (1mm-3m)

7/27/2019

Annelids(Segmented worms) Annelids are worms with segmented bodies and a true coelom lined with tissue derived from mesoderm Digestion now has mouth and anus. Also simple crop and gizzard Closed circulatory system (stays in vessels) Blood picks up oxygen from skin Leeches have suckers for attachment

Earthworm

Earthworm

Earthworm

Earthworm

Earthworm

16 15 17 July 22, 2012 Footer text here

Molluska Phylum: Mollusca—includes snails, slugs, clams, squids, and octopi Most with shells, some lacking They have true coeloms surrounded by mesoderm and complex organ systems. Many mollusks have a free-swimming larva, or immature stage, called a trochophore.

Molluska Squid (15 m and over 500 pounds) one of largest invertebrates Must be in moist environment Used for food, can carry parasites, invasive species (zebra mussles)

Mollusks Video 7/27/2019

Molluska Mantle: membrane that secretes the shell Foot: Used for locomotion in all except cephlopods (squid) Digging (clams) Attachment (mussels) Secretes mucus path (slugs) Gills: Extract oxygen Incurrent/Excurrent siphon (water in and out) Radula: Rows of teeth at the mouth. Used like a sander to capture food (scrape algae off of rocks, drill holes in clams, harpoon) Open Ciruculation Opposite sexes with external fertilization Molluska

Clam (Mollusk-Bivalve)

Arthropods Phylum: Arthropoda (arthron = “joint,” podos = “foot”) Spiders Centipedes Insects – crickets, grasshoppers, etc Crustaceans (crayfish, lobster) Arthropods appeared in the sea about 600 million years ago and have since colonized freshwater habitats, land, and air.

Arthropods bodies divided into segments a tough external skeleton called an exoskeleton made of chitin and molting Cephalization jointed appendages, which are structures such as legs and antennae that extend from the body wall. Compound Eyes Open circulation Gills if in water/Tracheae and spiricles if terrestrial

Crayfish External Anatomy

Crayfish Internal Anatomy

Echinoderms Phylum: Echinodermata (echino = “spiny,” dermis = “skin”)—includes sea stars, sea urchins, and sand dollars. Echinoderms have spiny skin and an internal skeleton. They also have a water vascular system—a network of water-filled tubes that include suction-cuplike tube feet, which are used for walking and gripping prey. Most exhibit five-part radial symmetry and are deuterostomes.

Starfish