Animalia Foglia
Animal Characteristics
- Heterotrophs
- Must ingest others for nutrients
- Multicellular
- Complex bodies
- No cell walls
- Allows active movement
- Sexual reproduction
- No alteration of generation
- No haploid gametophyte
Body Cavity
- Space for organ system development
- Increase digestive and reproductive systems
- Increase gamete production
- Coelem
- Mesoderm and endoderm
- Allows complex structures to develop in digestive system
Invertebrate: Porifera
- Sponges
- No distinct tissues or organs
- Do have specialized cells
- No symmetry
- Sessile
- No adults
Invertebrate: Cnidaria
- Jellyfish, hydra, sea anemone, coral
- Tissues, but no organs
- Two cell layers
- Radial symmetry
- Predators
- Tentacles surround gut opening
- Extracellular digestion
- Release enzymes into gut cavity
- Absorption by cell lining gut
Invertebrate: Platyhelminthes
- Flatworms
- Tapeworm, planaria
- Mostly parasitic
- Bilaterally symmetrical
- Have right and left, then have head end and posterior end
- Cephalization
Development of brain
- Concentration of sense organs in head
- Increase specialization in body plan
- Invertebrate: Nematode
- Roundworms
- Bilaterally symmetrical
- Body cavity
- Pseudocoelom
- Simple body cavity
- Digestive system
- Tube running through length of body
- Many are parasitic
- Hookworm
- Invertebrate: Mollusca
- Mollusks
- Slugs, snails, clams, squid
- Bilaterally symmetrical with exceptions
- Soft bodies, mostly protected by hard shells
- True coelem
- Increases complexity and specialization of internal organs
- Invertebrate: Annelida
- Segmented worms
- Earthworms, leeches
- Segments
- Increase mobility
- Redundancy in body section
- Bilaterally symmetrical
- True coelem
- Invertebrate: Arthropoda
- Spiders, insects, crustaceans
- Most successful animal phylum
- Bilaterally symmetrical
- Segmented
- Specialized segments
- Allows jointed appendages
- Exoskeleton
- Chitin and protein
- Arthropod Groups
- Arachnids
- 8 legs, 2 body parts
- Spiders, ticks, scorpions
- Crustaceans
- Gills, 2 pairs antennae
- Crab, lobster, barnacles, shrimp
- Insects
- 6 legs, 3 body parts
- Butterfly, bees, ladybug
- Invertebrate: Echinodermata
- Starfish, sea urchins, sea cucumber
- Radially symmetrical as adults
- Spiny exoskeleton
- Deuterostome
- Chordata
- Vertebrates
- Fish, amphibians, reptiles, birds, mammals
- Internal bony skeleton
- Backbone encasing spinal column
- Skull-encased brain
- Deuterostome
- Vertebrates: Fish
- Characteristics
- Body structure
- Bony and cartilaginous skeleton
- Jaws and paired appendages
- Scales
- Body function
- Gills for gas exchange
- Two chambered heart
- Single loop blood circulation
- Ectotherms
- Reproduction
- External fertilization
- External development in aquatic egg
- Vertebrates: Amphibian
- Characteristics
- Body structure
- Legs
- Moist skin
- Gas exchange
- Body function
- Lungs and diffusion through skin for gas exchange
- Three chambered heart
- Veins in lung back to heart
- Ectotherms
- Reproductions
- External fertilization
- External development in aquatic egg
- Metamorphosis
- Vertebrates: Reptiles
- Characteristics
- Body structure
- Dry skin, scales, armor
- Body function
- Lungs for gas exchange
- Thoracic breathing; negative pressure
- Three chambered heart
- Ectotherms
- Reproduction
- Internal fertilization
- External development in amniotic egg
- Vertebrates: Birds (Aves)
- Characteristics
- Body structure
- Feathers and wings
- Thin, hollow bone flight skeleton
- Body function
- Very efficient lungs and air sacs
- Four chambered heart
- Endotherms
- Reproduction
- Internal fertilization
- External development in amniotic egg
- Vertebrates: Mammals
- Characteristics
- Body structure
- Hair
- Specialized teeth
- Body functions
- Lungs, diaphragm
- Four chambered heart
- Endotherms
- Reproductions
- Internal fertilization
- Internal development in uterus
- Nourishment through placenta
- Birth live young
- Mammary glands make milk
- Subgroups
- Monotremes
- Egg-layaing mammals
- Lack of placenta and true nipples
- Duck-billed platypus, echidna
- Marsupials
- Pouched mammals
- Offspring feed from nipples in pouch
- Short-lived placenta
- Koala, kangaroo, opossum
- Placental
- True placenta
- Nutrient and waste filter
- Shrews, bats, whales, humans