1. Section 1.2-1.3 Classification and Invertebrates

2. How Classification Began
Classification(分类): the grouping of objects or information based on similarities.
Taxonomy(分类学): branch of biology that groups and names organisms based on studies of their different characteristics.
Aristotle: Plants vs. Animals
Flying vs. Walking

3. Linnaeus System Panthera leo Panthera tigris Carolus Linnaeus
Binomial nomenclature
Two Latin names
First is genus
Second is specific epithet
Species name:
Panthera leo
Panthera tigris
Always capitalized
Always lowercased
Always in Italics

4. How Living Things Are Classified
Eukarya
Animalia
Chordata
Mammalia
Primates
Hominidae
Homo
Sapien
A group of organisms is called a taxon(分类单元)
Organisms are ranked in taxa that range from having very broad characteristics to very specific ones.
Lynx canadensis
Lynx rufus
Felis concolor
Did King Phil’s Class Order Free Great Soup?
What is the taxonomy of human beings?

5. Rosa laevigata
Rosa canina
Malus pumila

6. Scientific vs. Common Names
Giraffa camelopardalis
Giraffe
Panthera onca
Jaguar
Fox
Vulpes vulpes
Platanista gangetica
Dolphin
Why don’t we just use common names?
Why do we use Latin?

9. The Animalia Kingdom Animals: Multicellular consumers
Animals are multicellular heterotrophs (eat things to get energy)
Two Groups:
Vertebrates
Have a vertebral column (backbone)
Invertebrates
Do not have a vertebral column (backbone)

10. Invertebrate Phyla Nematodes Annelids Molluscs
“roundworms”; thread-like bodies with a mouth and anus; No legs
Live in soil and water
Parasites that live off the body of a host
Annelids
Soft bodied segmented worms with paddle-like feet, chaetae, or bristles
Live in the sea, soil, or fresh water
Molluscs
Soft bodied but no segmentation
Use false-foot (pseudopodium) to move
Many have a shell for protection

11. Invertebrates: Arthropod Phyla
Arthropods species with segmented body covered by an exoskeleton with jointed legs
Crustaceans
2 sections; cephalothorax and abdomen
Two pairs of antennae and compound eyes
Breath with gills
Nearly all live in water
Myriapods
Long bodies made of many segments
Centipedes
1 pair of legs per segment
Carnivores (meat eaters)
Millipedes
2 pairs of legs per segment
Herbivores (plant eaters)

12. Invertebrates: Arthropod Phyla 2
3) Insects
3 body parts; head, thorax and abdomen
One pair of antennae on their head and have compound eyes
3 pairs of legs on thorax; sometimes 2 pairs of wings
Breathing holes in exoskeleton called spiracles; Waterproof cuticle
Live almost everywhere! Most abundant life form
4) Arachnids
2 body parts; cephalothorax and abdomen
4 pairs of legs and no wings
No antennae but many pairs of eyes
Many have poison; some deadly to humans
Spider have spinnerets make silk threads

13. Research you favorite vertebrate:
Homework:
Vocab lists
Questions on p. 5 and 7
Research you favorite vertebrate:
Tell us:
Phyla
Habitat (where it lives)
Interesting characteristics