1. Vertebrates and Invertebrates By Youjee Seo

2.  How ? Matter of sorting out similarities and difference  Why ? Enabling scientists to describe evolutionary relationships Identifying shared traits Highlighting unique characteristics

3.  Vertebrates have a backbone & invertebrates do not  Backbone supports nerves and body, evolved from bony fish called Osteichthyes

4.  Vertebrates are broken down into 5 different types

5.  Warm-blooded animals with hair  Feed their young with milk  Internal fertilization  Grouped into 3 different categories  Marsupials (Kangaroos, Koalas, wallabies, possums)  Placental Mammals (Primates and Humans)  Monotremes (Platypuses)

6.  Birds are warm-blooded animals and covered in feathers which enable them to fly making them one of the few vertebrates to be able to fly  Internal fertilization & lay eggs.  Birds have over 9,700 species

7.  Cold-blooded animals that have scales  Internal fertilization and lay eggs.  The reptile group is very diverse and differs greatly from most of vertebrates because it is a ectothermal animal meaning that it must get it’s body heat from the sun and shade

8.  Cold-blooded living in the water and breathe with gills at the beginning of their lives. Later, they move on to land and breathe with lungs  Amphibians live a very odd life starting as eggs and then transforming into a fish life creature only to end up as a tetra pod (4 footed animal)  External fertilization & lay eggs  frogs, toads, and salamanders

9.  Cold-blooded animals living in the water. Most fish breathe with gills.  External fertilization and lay eggs  Fish are categorized into 3 different types  Cartilaginous(Including sharks and rays)  Ray-finned(Salmon all the way to goldfish)  Lobe-finned(Lungfish and coelacanths)

10.  Invertebrates are broken down into 8 different categories  Invertebrates are any animal without a backbone

11.  Arthropods have 4 different groups  Insects (Bee’s and flies)  Arachnids (Spiders)  Crustaceans: (Crabs and Lobster)  Millipedes and centipedes

12.  Most molluscs spend their lives living in a shell  Molluscs have three different types  Gastropods (Snails and slugs)  Bivalve molluscus ( Clams, scallops, and oysters)  Cephalopods(Octopuses and squids).

13.  Roundworms are found all over earth, including salt and fresh water!

14.  Flatworms include parasites which can harm humans and sometimes kill them

15.  Cnidarians are a very diverse group, this group includes jellyfish, sea anemones and coral.  These animals are incredibly dangerous to humans sometimes.

16.  Sponges have no tissues or organs in their body  They’re filter feeders, meaning that they pump water through their pores to feed

17.  Animal Classification  Difference between vertebrates and Invertebrates  Vertebrates details  Invertebrates details