Question

What is ecosystem? Who coined the term ecosystem?

Answer 1

Hint: It is an interaction between living and non- living components.
It consists of two main components: Biotic and abiotic components.
Ecosystems provide habitat to various plants and animals.
Ecosystem helps in recycling of nutrients from biotic and abiotic components.

Complete answer:
In order to solve this question, we need to know what is an ecosystem.
Ecosystem: It is defined as a group or system in which living and non living components of the environment interact with each other through nutrient cycle or by the food chain.
Ecosystem is controlled by various factors such as external and internal factors.
External factors include: climate, topography, material for soil formation.
Internal Factors includes: Decomposition, shading, root competition.

Basically, an ecosystem composed of two main components.
A. Biotic components
B. Abiotic components

> Biotic components: Biotic components or biotic factors are the living components of the ecosystem.
Biotic factors are grouped into three major categories:
- Producers: Also known as autotrophs, Convert light energy into food.
For example: Green plants etc.
- Consumers: Also known as heterotrophs, depends upon the producers for food For example: herbivores or carnivores.
- Decomposers: Also known as detritivores break chemicals from producers and consumers. For example: omnivores

> Abiotic components: Abiotic components or abiotic factors are the non living component of the ecosystem.
Abiotic factors are atmosphere, chemical, sunlight/temperature, wind, and water.
Sir Arthur G. Tansley coined the term ecosystem in 1935.

Note: Biodiversity is a biological diversity which means different kinds of life forms are present on the earth.
Major components of biodiversity are ecosystems diversity, species diversity, and genetic diversity.
Biosphere: It is a part or portion on the surface of earth where life exists. It includes the portion of land, air, water.