BSC 2011 Chapter Notes - Chapter 32: Ediacaran Biota, Cambrian Explosion, Neoproterozoic

• School: University of Florida
• Department: Biology - Biological Sciences
• Course: BSC 2011
• Professor: Chen Sixue

Document Summary

A kingdom of consumers: predatory animals overwhelm their prey using their strength, speed, or toxins. 32. 1 animals are multicellular, heterotrophic eukaryotes with tissues that develop from embryonic layers. So they ingest them either by eating other living organisms or by eating nonliving organic material. Unlike fungi, most animals feed by ingesting their food and then using enzymes to digest it within their. Cell structure and specialization bodies: animals are eukaryotes, and multicellular, animals lack the structural support of cell walls. Proteins external to the cell membrane provide structural support to animal cells and connect them to one another: most abundant of these proteins is collagen. Muscle and nerve cells are central to the animal lifestyle. Layers of embryonic tissues that will develop into adult body parts are produced. Resulting developmental stage is called gastrula: although some animals, including humans, develop directly into adults, life cycles of most animals include at least one larval stage.