Answer:
Cell- It is considered as the basic unit of life that is capable of carrying out all the functions of living things
Organ-It is made of different tissues organized together to perform a certain function. For Example, the heart is made up of different tissues that enables it to perform the task of pumping blood to all parts of the body.
Organ system-It is made of several different organs that work together to perform a broad spectrum of functions.
Organism-a collection of different organ systems that work together to bring about various life activities.
Population- Group of organisms of the same species occupying any given area. These organisms freely interact with one another.
Communities- It is composed of all populations of different species of organisms living together in a given area. These organisms interact with one another.
Ecosystem-It is made of all the community of organisms (Biotic components) that inhabit the same area, as well as the non-living components (abiotic component) of the area and the set of interactions that exist between these two components.
Biosphere-The biosphere consists of the totality of the ecosystems on planet Earth. It also pertains to any part of Earth’s sphere where life exists. It is also referred as the world of life.
Examples:
Cell- Bone cells
Organ-Heart
Organ system-Respiratory
Organism-Human, animal, and plants
Population-Population of elephants
Communities- Community of animals in a given area
Ecosystem-Aquatic ecosystem
Biosphere- Five main parts of biosphere - aquatic, desert, forest, grassland and tundra.
