Biology: Characteristics of Life

Cells: All living organisms are composed of one or more cells.
Metabolism: Life involves chemical reactions for energy and material processing.
Homeostasis: Ability to maintain stable internal conditions.
Growth and Development: Organisms undergo regulated growth and development.
Reproduction: Ability to produce offspring, either sexually or asexually.
Response to Stimuli: Organisms respond to environmental changes.
Adaptation: Ability to evolve and adapt over generations.

Domain: Three major domains - Archaea, Bacteria, Eukarya.
Kingdoms: Broad subdivisions under domains (e.g., Animalia, Plantae, Fungi, Protista).
Taxonomy: Science of classifying organisms based on shared characteristics.

Ecosystem Stability: Greater diversity leads to more resilient ecosystems.
Resource Provision: Biodiversity provides food, medicine, and materials.
Ecological Balance: Diverse species contribute to nutrient cycling and energy flow.

Food Chains/Webs: Illustrate energy transfer between organisms.
Symbiotic Relationships:
- Mutualism: Both species benefit.
- Commensalism: One benefits, the other is unaffected.
- Parasitism: One benefits at the expense of the other.

Threats to Biodiversity: Habitat loss, pollution, climate change, overexploitation.
Conservation Efforts: Protected areas, wildlife reserves, sustainable practices.
Sustainable Development: Balance between resource use and conservation for future generations.

All living organisms are made up of one or more cells, which are considered the basic unit of life.
Metabolism encompasses all chemical processes that convert energy and materials in organisms.
Homeostasis is the ability of organisms to maintain a stable internal environment despite external changes.
Growth and development in organisms occur in a regulated manner.
Reproduction can happen through sexual or asexual means to produce offspring.
Organisms can respond effectively to environmental stimuli or changes.
Adaptation refers to the evolutionary capacity of a species to change over generations.

Atoms represent the smallest units of matter.
Molecules consist of bonded groups of atoms.
Cells are the basic building blocks of life.
Tissues are composed of similar cells collaborating for a common function.
Organs are structures formed from tissues working in unison.
An organ system includes multiple organs that cooperate to perform complex functions.
An organism is defined as an individual living entity.
Populations consist of members of the same species inhabiting a specific area.
Communities are formed by different populations living together in a shared environment.
Ecosystems combine communities with their physical environments.
Biomes are extensive regions distinguished by particular climatic conditions and ecosystems.
The biosphere encapsulates all ecosystems, representing the zone of life on Earth.

Organisms are categorized into three major domains: Archaea, Bacteria, and Eukarya.
Each domain contains kingdoms, such as Animalia, Plantae, Fungi, and Protista, which represent broader classifications.
Taxonomy is the discipline that systematically classifies organisms based on shared traits.

Greater biodiversity enhances ecosystem stability and resilience against environmental changes.
Biodiversity is crucial for providing essential resources, including food, medicinal compounds, and raw materials.
A diverse array of species facilitates nutrient cycling and energy transfer within ecosystems, maintaining ecological balance.

Food chains and webs illustrate the flow of energy and nutrients between different organisms in an ecosystem.
Symbiotic relationships among species take various forms:
- Mutualism benefits both participating species.
- Commensalism benefits one species while having no impact on the other.
- Parasitism benefits one organism at the expense of the other.

Biodiversity faces threats from habitat destruction, pollution, climate change, and overexploitation of resources.
Conservation endeavors include establishing protected areas and wildlife reserves, along with promoting sustainable practices.
Sustainable development seeks a balance between resource consumption and conservation efforts to ensure future generations can meet their needs.