What is hierarchy of life?

Answer 1

The hierarchy of life , also called Biological organization is the hierarchy of complex biological structures and systems that define life using a reductionistic approach.The traditional hierarchy, extends from atoms to biospheres. The higher levels of this scheme are often referred to as ecological organization.

Each level in the hierarchy represents an increase in organizational complexity, with each "object" being primarily composed of the previous level's basic unit.The basic principle behind the organization is the concept of emergence—the properties and functions found at a hierarchical level are not present and irrelevant at the lower levels.

Levels of Biological organization from smallest to largest:

Atom, Molecule, Organelle, Cell, Tissue, Organ, Organ System, Organism, Population, Community, Ecosystem, Biome, Biosphere

Levels of Biological organization from largest to smallest:

Biosphere, Biome, Ecosystem, Community, Population, Organism, Organ System, Organ, Tissue, Cell, Organelle, Molecule, Atom

Her are the definitions of these terms;

Atom

The smallest part of an element made of protons, neutrons, and electrons. Ex. Carbon (C)

Molecule

Two or more atoms bonded together. Ex. water

Organelle

A small part inside a cell that has a specific job to do. Ex. vacuole

Cell

The basic unit of structure and function in a living thing. Ex. white blood cell

Tissue

Many cells of the same type working together to perform a function. Ex.

Organ

Different tissues working together to form a structure with a specific function. Ex. heart

Organ System

Different organs working together to perform a major process in an organism. Ex. Digestive System

Organism

A single living thing that has all of the characteristics of life. Ex. Dog

Population

Many organisms of the same type (species) in the same place at the same time. Ex. a herd of Caribou

Community

All of the different living things (orgamisms) in the same place at the same time. Ex. The white tail deer, oak tree, and gray squirrels in the forest.

Ecosystem

All of the living things (biotic) and the non-living factors (abiotic) in the same place at the same time. Ex. All of the green algae, sunfish, frogs in the water, along with amount of salt and temp of water.

Biome

A region of the earth's surface with a specific climate where only certain types of plants and animals live. Ex. Tundra

Biosphere

The part of the earth's surface where living things can be found. Ex. Earth