E N D
1. Objectives Describe characteristics common to animals
Describe the characteristics of major animal phyla
Identify on sight members of major animal phyla
Define animal, chordate, vertebrate, invertebrate
2. Characteristics of animals Multicellular
Eukaryotic
Heterotrophic
Sexual reproduction with some hermaphrodites
No cell wall
Motile at some stage
Rapid response to environment
Nerve cells
Muscle cells
Both
3. Taxonomy
4. Taxonomy
5. Classification 27 Phyla discuss major ones
Grouped as:
Invertebrates: NO backbone/vertebral column
Vertebrates: backbone/vertebral column
What is a backbone and what is a chordate?
Backbone: supportative bone structure
Chordate: has nerve chord
We will cover:
6 phyla
5 invertebrate phyla
8 classes within the chordate phyla
6. Classification Domain Kingdom Phylum
Eukarya Animalia Sponges
Cnidarians
Flatworms
Roundworms
Segmented worms
Molluscs
Arthropods
Echinoderms
Chordates
7. Classification: Invertebrate(no backbone) Domain Kingdom Phylum
Eukarya Animalia Sponges
Cnidarians
Flatworms
Roundworms
Segmented worms
Molluscs
Arthropods
Echinoderms
Chordates
8. Classification Domain Kingdom Phylum
Eukarya Animalia Sponges
Cnidarians
Flatworms
Roundworms
Segmented worms
Molluscs
Arthropods
Echinoderms
Chordates
9. Sponges Sac-like body
Cellular level of organization
2 cell layers
Filter feeder
Rudimentary nervous system
CAN regenerate Figure: 16-28b
Title:
Sponges.
Caption:
(b) Tiny appendages attach this tubular sponge to rocks.
Figure: 16-28b
Title:
Sponges.
Caption:
(b) Tiny appendages attach this tubular sponge to rocks.
11. Classification Domain Kingdom Phylum
Eukarya Animalia Sponges
Cnidarians
Flatworms
Roundworms
Segmented worms
Molluscs
Arthropods
Echinoderms
Chordates
12. Cnidaria (Coelenterata) Marine
Radial symmetry
Two cell layers with differentiation; one body opening
Alternating body forms (polyp & medusa)
Stinging cells
16. Classification Domain Kingdom Phylum
Eukarya Animalia Sponges
Cnidarians
Flatworms
Roundworms
Segmented worms
Molluscs
Arthropods
Echinoderms
Chordates
17. Flatworms (Platyhelminthes) 3 cell layers
Acoelomate
Many parasitic and/or pathogenic
One way digestive system
21. Classification Domain Kingdom Phylum
Eukarya Animalia Sponges
Cnidarians
Flatworms
Roundworms
Segmented worms
Molluscs
Arthropods
Echinoderms
Chordates
22. Roundworms (Nematoda) Moist environments
Most free-living; many parasitic
Pseudocoelomate
Tube-like digestive system
Well-developed senses in free-living
27. Classification Domain Kingdom Phylum
Eukarya Animalia Sponges
Cnidarians
Flatworms
Roundworms
Segmented worms
Molluscs
Arthropods
Echinoderms
Chordates
28. Annelids Segmented
Coelomate
Hydrostatic skeleton
Brain + solid nerve cord
Three main types
Marine Worms
1 Clam worms (predators)
2 Fan worms (prey)
Earthworms
Leeches
30. Annelids
32. Classification Domain Kingdom Phylum
Eukarya Animalia Sponges
Cnidarians
Flatworms
Roundworms
Segmented worms
Mollusks
Arthropods
Echinoderms
Chordates
33. Molluscs (Mollusca) Soft bodied with protective shells
Aquatic/Marine
Often mucus feeders
Body parts
Visceral mass
Foot
Mantle (secretes shell)
35. Mollusks
38. Classification Domain Kingdom Phylum
Eukarya Animalia Sponges
Cnidarians
Flatworms
Roundworms
Segmented worms
Molluscs
Arthropods
Echinoderms
Chordates
39. Arthropods 3 types:
1 Crustaceans
2 Insects
3 Arachnids
Major characteristics:
1 Exoskeleton (chitin)
Protection
Attachment for muscles
Movement
Prevent drying out
2 Segmented bodies Head, thorax, abdomen, w/ jointed appendages
3 Well developed brains and nervous systems
40. Arthropods: Crustaceans
41. Arthropods: Insects
42. Arthropods: Arachnids
43. Classification Domain Kingdom Phylum
Eukarya Animalia Sponges
Cnidarians
Flatworms
Roundworms
Segmented worms
Molluscs
Arthropods
Echinoderms
Chordates
44. Echinoderms Marine animals
Internal skeleton
Spiny skin
Radially symmetrical
45. Echinoderms
46. Classification Domain Kingdom Phylum
Eukarya Animalia Sponges
Segmented worms
Molluscs
Arthropods
Echinoderms
Chordates
47. Phylum Chordata
48. Chordates have during some time in their development: 1 notochord
2 hollow nerve cord in the back
3 pharyngeal pouches (embryonic structures)
4 tail
49. Classification Domain Kingdom Phylum Class
Eukarya Animalia Sponges
Segmented worms
Molluscs
Arthropods
Echinoderms
Chordates Lancets
Tunicates
Jawless Fish
Cartilaginous Fish
Bony Fish
Amphibians
Reptiles
Birds
Mammals
50. Lancets (invertebrate)
51. Tunicates (invertebrate)
52. Classification Domain Kingdom Phylum Class
Eukarya Animalia Sponges
Segmented worms
Molluscs
Arthropods
Echinoderms
Chordates Lancets
Tunicates
Jawless Fish
Cartilaginous Fish
Vertebrates Bony Fish
Amphibians
Reptiles
Birds
Mammals
53. Vertebrates 1 living internal skeleton
2 closed circulation
3 paired appendages
4 efficient breathing and excretion
5 highly developed brains
54. Jawless Fishes-Agnatha (lampreys)
55. Cartilaginous Fishes-Chondrichthyes
3 Types
Sharks
Rays
Skates
3 Well developed senses
electrical
pressure
smell
56. Bony Fishes-Osteichthyes Claim to fame:
(most numerous vertebrate)
3 Types
Perch
Trout
Salmon
3 Traits
Bony skeleton
Scales
Jaws
57. Amphibia 4 types
Frogs
Toads
Newts
Salamanders
3 traits
Usually 4 legs
Usually metamorphose
Smooth, moist skin
58. Amphibian Metamorphosis
59. Reptilia 4 types:
Turtles
Alligators
Snakes
Lizards
3 traits
Usually 4 legs
Egg with a shell
Dry, scaly skin
60. Aves Traits:
Feathers
Hard-shelled egg
Usually wings for flying
Classification
Beak type
Foot type
61. Birds Adaptations for flying
Wings
Hollow, light bones
Feathers
Sternum
Well-developed heart
Well-developed lungs
62. Mammalia 4 traits
Mammary glands
Body hair
Warm-blooded
Infant dependency
3 types:
1 Monotremes
2 Marsupials
3 Placental
63. Mammals: Monotremes 2 types
1 spiny anteater
2 duckbilled platypus
Reproduction:
Eggs
64. Mammals: Marsupials Location: Australia,
4 types:
1 opossum (here)
2 koala
3 kangaroo
4 Tasmanian wolf
Reproduction:
Born very early
Crawl into a pouch
Attach to a mammary gland
65. Mammals: Placental Mammals
66. Order: Primates Traits:
1 opposable thumb
2 learned behavior
3 big brain
Family: Hominidae
Genus: Homo
Species: Homo sapiens
67. Figure: 15-13
Title:
A possible evolutionary tree for humans.
Caption:
This hypothetical family tree shows skulls and facial reconstructions of representative specimens. Although many paleontologists consider this to be the most likely human family tree, there are several alternative interpretations of the known hominid fossils.. Fossils of the earliest hominid, Ardipithecus ramidus, are too fragmentary to enable reconstruction of a skull; the photo inset is of teeth, which reveal much about the specimens relationship to other hominids.
Figure: 15-13
Title:
A possible evolutionary tree for humans.
Caption:
This hypothetical family tree shows skulls and facial reconstructions of representative specimens. Although many paleontologists consider this to be the most likely human family tree, there are several alternative interpretations of the known hominid fossils.. Fossils of the earliest hominid, Ardipithecus ramidus, are too fragmentary to enable reconstruction of a skull; the photo inset is of teeth, which reveal much about the specimens relationship to other hominids.
68. Neanderthals vs. Cro-Magnons
69. New member of Homo genus repo Homo florensiensis
Small island in Indonesia: Florens
Short stature
Grapefruit sized skull
Island evolution
Isolation
Inbreeding
Reduced resources
Limited competition
Get smaller
Co-existed with modern humans until 18,000 years ago.
70. Who are you? Domain: Eukarya Eukaryote
Kingdom: Animalia Animal
Phylum: Chordata Chordate
Class: Mammalia Mammal
Order: Primata Primate
Family: Hominidae Hominid
Genus: Homo Human
Species: sapiens modern