Lesson 4 What they are Flashcards
basic unit
Individual Species
group of species
Population
group of population
Community
community + environment
Ecosystem
group of ecosystem
Biomes
part of the earth wherein life is possible
Biosphere
Ecological Level of Organization
- Individual Species
- Population
- Community
- Ecosystem
- Biomes
- Biosphere
a community of organisms interacting with each other and with their environment.
ecosystem
ecosystem
Roy Clapham
fully defined ecosystem
Arthur Tansley
Living components
Biotic
Non-living components
Abiotic
TROPHIC LEVELS IN AN ECOSYSTEM
Producers
Consumers
Decomposers
produce food through photosynthesis
PRODUCERS
- Self-feeders
- Producers
- Manufactured their own food
Autotrophs
- Other-feeders
- Consumers
- Depend on other organisms for food
Heterotrophs
Carniivores, Herbivores, Omnivores and Scavengers
Consumers
eat dead plants and animals to reduce them into simple forms of matter
Decomposers
Types of Energy Transfer
- Food Chain
- Food Web
Simple pattern of food-energy transfer in an ecosystem
Food Chain
- Complex pattern of food-energy transfer in ecosystem
- Consists of more than one food chain
Food Web
__?__ cannot be created or destroyed, but it can be transferred or transformed from one form to another.
Energy
Ecological Relationships
- Mutualism or symbiosis
- Competition
- Predation
- Parasitism
- Commensalism
both are benefited
Mutualism or symbiosis
two or more organisms strive for the same nutrients
Competition
one is nourished while the other is eaten
Predation
one is nourished while the other is harmed
Parasitism
one is benefited while the other is unaffected
Commensalism
both species benefit from the interaction but each can live without the other (type of mutualism)
Facultative mutualism
one cannot survive for long without the other (type of mutualism)
Obligatory mutualism
competition between two different species (type of competition)
Inter-specific competition
competition between same species (type of competition)
Intra-specific
organism that benefits (predation)
Predator
organism that is eaten (predation)
Prey
organism that is benefited (parasitism)
Parasites
negatively affected organism (parasitism)
Host
are a taxonomically diverse group of organisms that infest the skin of human beings and other animals.(Types of Parasites)
Ectoparasites
parasites which live inside a host and generally inhabit areas such as the gut, lungs, heart and blood vessels. (Types of Parasites)
Endoparasites
organism that benefits (Commensalism)
Commensal
unaffected organism (Commensalism)
Host