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Ecosystem
1. ECOLOGY : นิเวศวิทยา
: the study of interactions among organisms
with each other and with environment
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2. Organism : The living things
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3. Population
- all the individuals of the same species in an area
A population is a group of living organisms of
the same kind living in the same place at the
same time
4. A population is always composed of same-
species organisms
population is a group of living organisms
of the same kind living in the same
place at the same time.
5. Habitat
Habitat is the place where a population lives
The habitat must supply the needs of organisms,
such as food, water, temperature, oxygen, and minerals.
If the population's needs are not met, it will move to
a better habitat
6. Habitats are specific to a population.
Each population has its own habitat.
For example, a population of ants has its own habitat
7. Community - all the populations that live
together in an area
The community of living things interacts with the
non-living world around it to form the ecosystem
8. Ecosystem : is a functional unit consisting of
living things in a given area, non-living chemical
and physical factors of their environment, linked
together through nutrient cycle and energy flow.
9. Biome - large area that has a particular climate,
and particular species of plants and animals that
live there
Biomes are ecosystems where several habitats intersect. The
Earth itself is one large biome. Smaller biomes include desert,
tundra, grasslands, and rainforest.
