Slide Show
Living Things and Their Environment
- 13.0 Give examples of ways in which organisms interact and have different
functions within an ecosystem that enable the ecosystem to survive.
Ecology Overview
What is Ecology Slide Show Link 2
Ecology is the Study of the Interactions between Organisms and the Nonliving Components of their Environment.
The levels of organization are biosphere, ecosystems, populations, community, habitat and organism.
Each organism in the community has a role in that community. In ecology this is the organisms niche.
The ecosystem consists of biotic and abiotic factors which are the living and nonliving factors in the ecosystem.
Energy fows through the ecosystem. The primary source of energy in the sun. All organisms need energy to carry out life fuctions such as growth, movement, reproduction, response, etc. Energy in the ecosystem flows from the sun to producers (autotrophs) to the consumers (heterotrophs) being herbivores, carnivores, omnivores, detritivores, and decomposers.
A. Decomposers – Consumers who feed on Remains of Dead Plants and
animals
B. herbivores – Eat Producers or Plant Eaters.
C. Carnivores – Eat other Consumers. Meat Eaters.
D. Omnivores – Eat Producers and Consumers. Plant and Meat Eaters
E. Detritivores– Feed on the “Garbage” of an Ecosystem
A food chain indicates who eat whom in the ecosystem and a food wed many conatin many food chains.
Symbiotic relationships amoung organisms are:
- Commensalism
One benefits, and the host is not affected either positively or negatively - Mutualism
Both benefit from the relationship - Parasitism
One benefits, the other (host) is harmed
In an Ecosystem the Three Primary Nutrient Cycles are:
A. The Water Cycle
B. The Carbon Cycle
C. The Nitrogen Cycle
The seven land biomes are:
1. Tropical Rain Forrest
2. Savannas
3. Deserts
4. Grasslands
5. Deciduous Forrest
6. Coniferous Forrest or Taiga or Evergreen Forest
7. Tundra
The two water biomes are:
1. Marine biome
2. Fresh water biome
Succession is the change in the types of plant species and organisms that occupy a given area through time from a natural occurence or man made occurence.
Primary succession is the establishment of plants on land that was not previously vegetated.
Secondary succession is the invasion of a habitat by plants and animals after the removal of past plants and animals from a natural or human event such as a fire, logging, farming, hurricanes or other.
Physical Geography Study Link 1
