Ch 12 - How Nature Works in Harmony8th Science
Defining a Habitat
What is the scientific definition of a 'habitat', and what are its two fundamental components?
What is the scientific definition of a 'habitat', and what are its two fundamental components?
Definition: A habitat is the specific physical place or environment where an organism lives, which provides the conditions necessary for its survival (food, shelter, space).
Biotic Components: The living organisms (plants, animals, microbes).
Abiotic Components: The non-living elements (air, water, soil, sunlight, temperature).
Prism Memory Hook
Habitat is Home (Biotic + Abiotic).
Population vs. Community
In an ecosystem, how does a 'Population' strictly differ from a 'Community'?
In an ecosystem, how does a 'Population' strictly differ from a 'Community'?
Population:
- Definition: A group of the same type of organisms (same species) living together in a habitat at a given time.
- Example: All the specific frogs (e.g., Indian bullfrogs) in a single pond.
Community:
- Definition: A collection of different populations sharing the same habitat and interacting with each other.
- Example: The frogs, fish, algae, and insects all living together in that same pond.
Prism Memory Hook
Population is Personal (one species). Community is Combined (many species).
The Ecosystem
What defines an 'Ecosystem', and what are the two major natural types found on Earth?
What defines an 'Ecosystem', and what are the two major natural types found on Earth?
Definition: The complex, self-sustaining interacting network formed by a community of living organisms (biotic) interacting with their physical environment (abiotic).
Terrestrial Ecosystems: Land-based systems (e.g., Forests, Grasslands, Deserts, Mountains).
Aquatic Ecosystems: Water-based systems (e.g., Ponds, Lakes, Rivers, Oceans).
Prism Memory Hook
Ecosystem is Everything (Biotic + Abiotic interacting together).
Also in this chapter
26 more cards to study in Prism
- 4Natural vs. Human-Made Ecosystems
- 5Flower Anatomy & Pollination
- 6Producers vs. Consumers
- 7Classification of Consumers
- 8Decomposers: Nature's Recyclers
- 9The Food Chain
- 10The 10% Energy Flow Rule
- 11Trophic Levels
- 12Food Web vs. Food Chain
- 13Three Types of Ecosystem Interactions
- 14Ecological Relationship: Mutualism (+/+)
- 15Ecological Relationship: Commensalism (+/0)
- 16Ecological Relationship: Parasitism (+/-)
- 17The Role of Ecological Competition
- 18Ecosystem Services
- 19Pond Dynamics: Fish and Seed Production
- 20The Ripple Effect: The Indian Bullfrog
- 21The Green Revolution's Hidden Cost
- 22Scientific Heritage: Vrikshayurveda
- 23Threatened Ecosystem: The Sundarbans
- 24The Production of Food (Photosynthesis)
- 25Pioneering Ecologist: A.J.T. Johnsingh
- 26Human-Wildlife Conflict & Corridors
- 27Migratory Birds: The Demoiselle Crane
- 28Tribal Conservation: Bond with the Tiger
- 29Major Protected Areas of India
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