V' Kingdom Animalia

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V. Kingdom Animalia A. Introduction 1.
Characteristics Eukaryotic Multicellular
Heterotrophic Lack cell walls.
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V. Kingdom Animalia A. Introduction 1.
Characteristics 2. History - first animals
in fossil record date to 600 mya largely
wormlike soft-bodied organisms
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V. Kingdom Animalia A. Introduction 1.
Characteristics 2. History - first animals
in fossil record date to 600 mya largely
wormlike soft-bodied organisms - in the
Cambrian, 550 mya radiation of most major
phyla seen today organisms with hard parts
radiation of predators
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V. Kingdom Animalia B. Diversity 1.
Overview - Approximately 1 million
described animal species. Of these 5
have a backbone (vertebrates) ( a subphylum in
the phylum Chordata)
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V. Kingdom Animalia B. Diversity 1.
Overview - Approximately 1 million
described animal species. Of these 5
have a backbone (vertebrates) ( a subphylum in
the phylum Chordata) 95 lack a backbone
(invertebrates) (in 29 Phyla, including
Chordata) 85 are Arthropods (insects,
crustaceans, etc.)
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V. Kingdom Animalia B. Diversity 1.
Overview - Of the 29 Phyla, ALL but the
arthropods and Chordates have more
marine/aquatic species than terrestrial
species. - So, most animal life is
invertebrate and/or marine. humans are
not a typical animal vertebrates are
not typical animals
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V. Kingdom Animalia B. Diversity 2.
Evolutionary Trends a. Body
Symmetry asymmetrical radially
symmetrical bilaterally symmetrical
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V. Kingdom Animalia B. Diversity 2. Trends
a. - Body Symmetry b.
Cephalization (evolving a head)
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V. Kingdom Animalia B. Diversity 2. Trends
a. Body Symmetry b. Cephalization
(evolving a head) c. Digestion -
intracellular to extracellular - evolution of a
digestive system (important to heterotrophs
that have to EAT)
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V. Kingdom Animalia C. Major Phyla 1.
Sponges
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V. Kingdom Animalia C. Major Phyla 1.
Sponges Protist links Choanoflagellates and
choanocytes
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V. Kingdom Animalia C. Major Phyla 1.
Sponges Protist links Choanoflagellates and
choanocytes Multicellular, with specialized
cells, but loosely integrated (the blender
phenomenon).
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V. Kingdom Animalia C. Major Phyla 1.
Sponges Protist links Choanoflagellates and
choanocytes Multicellular, with specialized
cells, but loosely integrated (the blender
phenomenon). Asymmetrical
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V. Kingdom Animalia C. Major Phyla 1.
Sponges Protist links Choanoflagellates and
choanocytes Multicellular, with specialized
cells, but loosely integrated (the blender
phenomenon). Asymmetrical Filter feeders with
intracellular digestion choanocytes absorb,
amoebocytes distribute, spicules provide
structural support.
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V. Kingdom Animalia C. Major Phyla 1.
Sponges Protist links Choanoflagellates and
choanocytes Multicellular, with specialized
cells, but loosely integrated (the blender
phenomenon). Asymmetrical Filter feeders with
intracellular digestion Sexual and Asexual
reproduction (fragmentation)
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V. Kingdom Animalia C. Major Phyla 2.
Cnidarians - Diversity Hydras
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V. Kingdom Animalia C. Major Phyla 2.
Cnidarians - Diversity Hydras Jellyfish
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V. Kingdom Animalia C. Major Phyla 2.
Cnidarians - Diversity Hydras Jellyfish
Anemones
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V. Kingdom Animalia C. Major Phyla 2.
Cnidarians - Diversity Hydras Jellyfish
Anemones Corals
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V. Kingdom Animalia C. Major Phyla 2.
Cnidarians - Diversity - Body
Plan diploblastic two true tissue layers
(ectoderm and endoderm)
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V. Kingdom Animalia C. Major Phyla 2.
Cnidarians - Diversity - Body
Plan diploblastic two true tissue layers
(ectoderm and endoderm) gastrovascular cavity
intra AND extracellular
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V. Kingdom Animalia C. Major Phyla 2.
Cnidarians - Diversity - Body
Plan diploblastic two true tissue layers
(ectoderm and endoderm) gastrovascular cavity
intra AND extracellular ameoboid cells in
jelly
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V. Kingdom Animalia C. Major Phyla 2.
Cnidarians - Diversity - Body
Plan diploblastic two true tissue layers
(ectoderm and endoderm) gastrovascular cavity
intra AND extracellular ameoboid cells in
jelly cnidocytes with nematocysts
stingers
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V. Kingdom Animalia C. Major Phyla 2.
Cnidarians - Diversity - Body
Plan Radially Symmetrical Nerve Net no
cephalization
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V. Kingdom Animalia C. Major Phyla 2.
Cnidarians - Diversity - Body
Plan - Life Cycles Hydra and jellies
alternate between polyp and medusa stages coral
and anemones have only polyps
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V. Kingdom Animalia C. Major Phyla 2.
Cnidarians - Diversity - Body
Plan - Life Cycles - reproduce
sexually and asexually