Introduction to Ecology Organisms and their environment Ch
- Slides: 29
Introduction to Ecology
Organisms and their environment Ch 2. 1
What is ecology? The study of the interactions of organisms with one another and their environments
Parts of the Environment Abiotic Factors Non-living parts of environment Air Current Water Temperature Light Soil These things have a great effect on organisms
Parts of the environment Biotic Factors All living parts of an environment Animals Plants Microorganisms Fungi Bacteria These organisms interact with each other mostly in competition or as food
Abiotic or Biotic? 6 Biotic
Abiotic or Biotic? 7 Abiotic
Abiotic or Biotic? 8 Abiotic
Abiotic or Biotic? 9 Biotic
Levels of Organization 10
Levels of Organization Ecologists have organized the interactions an organism takes part in into different levels according to complexity. 11
What are the Simplest Levels? Atom Molecule Organelle Cell Tissue Organ System 12
Ecological levels of Organization BBECPO
Largest and most inclusive Level of Organization Biosphere: The portion of Earth that supports life. 14
Biome- Major ecosystem type Determined by precipitation and temperature.
Ecosystem All of the living and nonliving things within a given area. Biotic-living Abiotic-nonliving Basically a community plus all of the nonliving stuff too! 16
Community All the populations of different species that live in the same place at the same time. (living things only) 17
Population A group of organisms, all of the same species, which interbreed and live in the same place at the same time. 18
Organism An individual living that is made of cells, uses energy, reproduces, responds, grows, and develops 19
What level of organization? Organism 20
What level of Organization? 21 Community
What level of Organization? 22 Population
Organisms in Ecosystems Habitat (location) Place were organism lives out its life Ex: a stream, a field, your lawn Humans have high influences on habitats
Niche (job) Not all habitats are used in the same way All strategies and adaptations a species uses in its environment Need for food Where and how it survives Reproduction interactions
Sometimes organisms are classified by their job Producers-Autotrophs Use photosynthesis to make food from sunlight, carbon dioxide and water Plants and algae
Consumers-Heterotrophs Eat plants or animals to meet their energy requirements Name some consumers
Decomposers. Saprotroph These organisms breakdown dead organisms Fungus and bacteria are examples of saprophytes
Survival Relationships Symbiosis A close relationship between different organisms living together Mutualism Both species benefit Hummingbird and flowering plant
Other relationships Commensalism One species benefits but other is not harmed or bothered Parasitism Beneficial to one species but harmful to the other
Chapter 2 principles of ecology answer key
Section 1 organisms and their relationships
Unicellular/multicellular
Levels of organization in the biosphere
Ecology and environment difference
Chapter 1 science and the environment
Competitive interaction
Organisms and the environment
Environment vs ecology
Chapter 2 section 1 organisms and their relationships
Chapter 2 section 1 organisms and their relationships
Principles of ecology chapter 2
Living organisms and their surroundings
Chapter 2 section 1 organisms and their relationships
Marine ecology
Chaparral climograph
Where do organisms get their traits?
Where do all organisms get their energy
The process of grouping things based on similarities
Organisms that make their own food
Cells and their environment worksheet answers
Section 18-1 introduction to ecology worksheet answers
Lesson 1: introduction to ecology answer key
Environment of business finance
Arctic wolf physical features
Anasazi social structure
Which represents an aztec adaptation to their environment?
Romeo prologue
Barker's ecological theory of environmental psychology
Business environment introduction
