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There are usually 7 characters that must be fulfilled in order for an organism to be considered living.
The simplest list of these characters would be that the organism was able to; be sensitive to its environment, reproduce, ingest and metabolise food, respire, excrete move and grow.
A better selection of characters would be;
- that the organism was composed of cells (either 1 or many)
- that the organism had a genetic molecule and was able to evolve (DNA is the base-unit of evolution)
- that the cell/s of the organism was/were enclosed by a cell membrane (life is self-contained)
- that the organism was able to carry out its own, self-contained, biochemical reactions
- that the organism was able to reproduce, grow and develop (pass its genetic molecule onto a future generation)
- that the organism was able to respond to its environment (either from a sensory, neurological or evolutionary way)
With the above list, signalling (endocrinologically or neurologically) may be essential as the self-contained nature of life. Immunological responses may also turn out essential as part of the definition, self-containment and self-protection of life.
What else can I help you with?
Is a rotting log a living thing?
Yes they are still living. The logs in my house still have stuff growing from it. As well as our house that has logs and wood posts still have maple sap oozing from it and it's been 18 years since the house was built.
What is difference between a dead and a non-living thing?
Dead things are those who were once alive. Nonliving thing were never alive (ex. rock, viruses...) Living things are made up of units called cells, reproduce, are based on a universal genetic code (DNA & RNA), grow and develop, obtain and use materials and energy, respond to the environment, maintain a stable internal environmet and taken as a group, living things change over time.
Is a tree living or nonliving?
it has roots and takes in carbon dioxide
Cells are alive but not all living cells are organisms?
All living things are organisms. There is no such thing as a living cell that is not an organism.
What are the smallest unit on earth that is considered alive?
Difficult question. Viruses can be considered non-living because they lack a cellular structure and cannot metabolize things on their own. Porcine cicovirus is the smallest virus. Nanobes are considered the smallest known organism by most. But there are also Nanoarchaeum and Mycoplasma Gentilalium.
What makes living thing different from non living thing?
Living things are alive.
How and why living things are alive?
livig thing like human human is a living thing. and living thing nedded food.
What is the definition of non-living things?
Things which are not alive, which do not have the characteristics of living things: the ability to grow, the need to be nourished, the ability to reproduce.
Would a living thing be a living thing if it doesn't have one of the required characteristics of a living thing?
No. The characteristics of living things are: Movement, respiration, sense, growth, reproduction, energy and nutrition. You need to have all of them to be considered alive. e.g. A car moves, takes in air, uses energy and some have sensors that can sense their surroundings but you cannot say a car is alive.
Is a rotting log a living thing?
Yes they are still living. The logs in my house still have stuff growing from it. As well as our house that has logs and wood posts still have maple sap oozing from it and it's been 18 years since the house was built.
Is a dinosaur a living or a non-living thing?
A dinosaur is considered a non-living thing. Dinosaurs were a group of reptiles that existed millions of years ago and are now considered extinct.
What is the difference between living things and nonliving things?
one is alive other is not a non living thing is like a fibre glass plastic ect.
What living thing is made up of no cells?
Every living thing is made up of cells. There is no such thing alive that is not made up of one or more cells. If the object/product etc. has no cells, then the thing is not alive. The cells in a living thing is what makes it alive and make it to continue living. There are many things that confuse people with whether the object is alive or not. If not sure, look through a microscope on the highest zoom lens and there is your answer or ask a local scientist.
Is air a living or non-living thing?
Air is considered a non-living thing. It is a mixture of gases like nitrogen, oxygen, carbon dioxide, and others that are essential for living organisms, but air itself does not have the characteristics of living things such as growth, reproduction, or metabolism.
What are the things you need to be a living thing?
You need oxygen, food, nutrients and water to stay alive.
Is a tree living or nonliving?
it has roots and takes in carbon dioxide
What is difference between a dead and a non-living thing?
Dead things are those who were once alive. Nonliving thing were never alive (ex. rock, viruses...) Living things are made up of units called cells, reproduce, are based on a universal genetic code (DNA & RNA), grow and develop, obtain and use materials and energy, respond to the environment, maintain a stable internal environmet and taken as a group, living things change over time.
