BIOL110 Study Guide - Midterm Guide: Paramecium, Commensalism, Lysosome
15 Oct 2016
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Document Summary
Zoology is the scienti c study of animal life. Empirical test: by doing a controlled experiment that includes at least a test group and a control group. Conclusions: either agree with your hypothesis or disagree. Cell theory: all living things are made of cells. The idea of changes to animal populations occurring over time, guides our grouping of organisms by their ancestries (or relatedness) Eukaryotic (have membrane bound organelles): differentiates them from archaea and bacteria. Feeding by heterotrophy: they eat other organisms as a primary source of nutrition whereas plants get that nutrition from photosynthesis (autotrophy). Lacks a rigid cell wall: each cell only has a cell membrane, plants and fungi have rigid cell walls. Multicellular (w/ four types of molecules forming their extracellular matrix): collagen, proteoglycans, glycoproteins and integrins **all animals have this. In common and no other organisms have it** More than 1. 5 million of the animal species are named.
