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Biology 2483A Study Guide - Final Guide: Autotroph, Organism

Course Code
BIOL 2483A
Sheila Macfie
Study Guide

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Unit 1: Organisms & Environment
Chapter 1: Wed of Life
1. What is Ecology?
Ecology: study of interactions between organism/enviro that determine distribution and
abundance of organism
Organism: animal, plant, single celled life form
Population: single species that live in particular area and interact
Community: interaction of population of diff species, live in same area
Ecosystem: community of organism + enviro they live in
Biosphere: all living organism on Earth + enviro they live
Landscape: area includes patches of multiple ecosystems
Biotic: living
Abiotic: non-living
Adaption: improves organism ability to survive/reproduce
Natural Selection: particular characteristics tend to survive/reproduce at higher rate
if characteristic heritable, offspring may have same characteristic of that in population
may increase overtime=evolution
resistance to antibiotic
Eco Process
Producers: autotroph, produce own food
Consumer: obtain food by eating other organisms
Ecological Maxims (principles):
1. Organism and enviro interconnected
2. Everything goes somewhere
3. No population can increase forever
4. Finite (limited) energy and resources lead to trade off
5. Organisms evolve
6. Communities and ecosystem change overtime
7. Organisms affected at varying spatial scales
8. Organism require interaction
2. Testing Ecology Hypothesis
a) Oseratio eperiet: a’t ask h it happe, hat ause it
b) Controlled lab: control/experimental groups
c) Controlled field
3. Events in world interconnected
experiment of frog illustrate how events in nature interconnected
any action have unanticipated side affect
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