1. Animalia Invertebrate
By: Mia Richmond, Dana Kai Reilly-Gober, Brooke Lerback & Helen Remke

2. Animalia Invertebrate or “Animal without a backbone”

3. Organization and Obtaining of Energy
Animalia Invertebrates:
- Are Eukaryotic
- Are Multicellular organisms
- Don’t have cell walls
Invertebrates can’t make their own food. They are heterotrophic which are organisms that feed off other things to get their energy. Being heterotrophic is one of the main characteristics of being an animal. We eat things, whether it is plants or other animals. That’s just the way the world works.

4. Classification Invertebrates are animals that lack a backbone
Most invertebrates are organized in a way call symmetrical organization which means when you can draw a line down the middle of the organism and the two sides look like mirror images and some example are -
a-symmetry: lack of equality or equivalence between parts or aspects of something; lack of symmetry
bi-symmetry: showing bilateral symmetry
lateral symmetry: characteristic of animals that are capable of moving freely through their environments

5. Phylums of Invertebrates
There are nine phyla of Invertebrates: Porifera, Cnidaria, Platyhelminthes, Nematoda, Rotifera, Mollusca, Annelida, Arthropoda, and Echinodermata
For example-
Cnidaria: includes sea anemones, jellyfish, coral, and hydra.
Porifera: sponges
Platyhelminthes: flatworms
Nematoda: roundworms
Rotifera: rotifers
Annelida: segmented worms
Mollusca: snail, octopus, clam
Echinodermata: starfish, sea cucumber, and sea lilies
Arthropoda: trilobita, horseshoe crabs, mites, millipedes, insects

6. Reproduction
Most reproduce sexually; however some also reproduce asexually.
Sexually reproducing means that two gametes from separate organisms (male and female) combine to form a new organism.
Asexually reproducing means reproduction, as budding, fission, or spore formation, not involving the union of gametes.
Fission- the division of one cell, body or body part into two.
Budding- certain cells divide rapidly and develop on the body surface to form an external bud.
Fragmentation- a body part is lost and then regenerates into new organisms.