Intro to animal characteristics.

Animal characteristics.
*Heterotrophic-feeds on organic matter
*Ingest food-takes in food from there mouth
*primarily diploid
*sexual reproduction
Animals go through dictinct development, but there are two different types of development; Gradual, and metamorphosis.
Animals are highly specialized. they have a variety of cells with specific functions.
There are two groups of animals, invertebrates, and vertebrates. Invertebrates are animals without back bones. Phyla porifera, cnideria, platyhelminthes, nermatoda, annelida, mollusca, arthropoda, and echinodermata.
Vertebrates are animals with back bones, within phylum chordata e.g fishes (cartilagenous, bony) amphibians, reptiles, aves (birds) and mammals