What is the characteristics of living things?

Answer 1

That's simple. Basically they need what they have to live for. The 6 things that living things need are Shelter, Food, Water, Space, Sunlight and Oxygen/Carbon Dioxide. Basically bacteria, individullay have the full success of using a particle of oxygen to live in. For example the Rodifus, needs the success to fully use particles of oxygen to contnue their process of naturally living in wide spaces for their sizes.

Answer 2

The characteristic of living things are1.All organism are made of cell2.All organism used energy3.All organism grow and develop4.All organism respond and may adopt to their environment5.All organism can reproduce6.All organism get rid of waste

Answer 3

well basically we used to remember these characteristics by a code (mrs gren)

m: movement.

r: respiration.

s: sensitivity.

g: growth.

r: reproduction.

e: excretion.

n: nutrition.

hope that helped

Answer 4

1.All living organisms grow.--- Increase in mass and increase in number

of individuals are twin characteristics of growth. A multicellular organism

grows by cell division. In plants, this growth by cell division occurs

continuously throughout their life span. In animals, this growth is seen

only up to a certain age. However, cell division occurs in certain tissues to

replace lost cells. Unicellular organisms also grow by cell division. One

can easily observe this in in vitro cultures by simply counting the number

of cells under the microscope. In majority of higher animals and plants,

growth and reproduction are mutually exclusive events. One must

remember that increase in body mass is considered as growth. Non-living

objects also grow if we take increase in body mass as a criterion for growth.

Mountains, boulders and sand mounds do grow. However, this kind of

growth exhibited by non-living objects is by accumulation of material on

the surface. In living organisms, growth is from inside. Growth, therefore,

cannot be taken as a defining property of living organisms. Conditions

under which it can be observed in all living organisms have to be explained

and then we understand that it is a characteristic of living systems. A

dead organism does not grow.

2.---Reproduction, likewise, is a characteristic of living organisms.---

In multicellular organisms, reproduction refers to the production of

progeny possessing features more or less similar to those of parents.

Invariably and implicitly we refer to sexual reproduction. Organisms

reproduce by asexual means also. Fungi multiply and spread easily due

to the millions of asexual spores they produce. In lower organisms like

yeast and hydra, we observe budding. In Planaria (flat worms), we observe

true regeneration, i.e., a fragmented organism regenerates the lost part of

its body and becomes, a new organism. The fungi, the filamentous algae,

the protonema of mosses, all easily multiply by fragmentation. When it

comes to unicellular organisms like bacteria, unicellular algae or Amoeba,

reproduction is synonymous with growth, i.e., increase in number of cells.

We have already defined growth as equivalent to increase in cell number

or mass. Hence, we notice that in single-celled organisms, we are not very

clear about the usage of these two terms - growth and reproduction.

Further, there are many organisms which do not reproduce (mules, sterile

worker bees, infertile human couples, etc). Hence, reproduction also cannot

be an all-inclusive defining characteristic of living organisms. Of course,

no non-living object is capable of reproducing or replicating by itself.

3.--Another characteristic of life is metabolism.----- All living organisms

are made of chemicals. These chemicals, small and big, belonging to

various classes, sizes, functions, etc., are constantly being made and

changed into some other biomolecules. These conversions are chemical

reactions or metabolic reactions. There are thousands of metabolic

reactions occurring simultaneously inside all living organisms, be they

unicellular or multicellular. All plants, animals, fungi and microbes exhibit

metabolism. The sum total of all the chemical reactions occurring in our

body is metabolism. No non-living object exhibits metabolism. Metabolic

reactions can be demonstrated outside the body in cell-free systems. An

isolated metabolic reaction(s) outside the body of an organism, performed

in a test tube is neither living nor non-living. Hence, while metabolism is

a defining feature of all living organisms without exception, isolated

metabolic reactions in vitro are not living things but surely living reactions.

4.--- cellular organisation of the body is the defining feature of

life forms.----------

5.------ the most obvious and technically complicated feature of all

living organisms is this ability to sense their surroundings or environment

and respond to these environmental stimuli which could be physical,

chemical or biological. We sense our environment through our sense

organs. Plants respond to external factors like light, water, temperature,

other organisms, pollutants, etc. All organisms, from the prokaryotes to

the most complex eukaryotes can sense and respond to environmental

cues. Photoperiod affects reproduction in seasonal breeders, both plants

and animals. All organisms handle chemicals entering their bodies. All

organisms therefore, are 'aware' of their surroundings. Human being is

the only organism who is aware of himself, i.e., has self-consciousness.

6.-Consciousness therefore, becomes the defining property of living

organisms.

When it comes to human beings, it is all the more difficult to define

the living state. We observe patients lying in coma in hospitals virtually

supported by machines which replace heart and lungs. The patient is

otherwise brain-dead. The patient has no self-consciousness. Are such

patients who never come back to normal life, living or non-living?

In higher classes, you will come to know that all living phenomena

are due to underlying interactions. Properties of tissues are not present

in the constituent cells but arise as a result of interactions among the

constituent cells. Similarly, properties of cellular organelles are not present

in the molecular constituents of the organelle but arise as a result of

interactions among the molecular components comprising the organelle.

These interactions result in emergent properties at a higher level of

organisation. This phenomenon is true in the hierarchy of organisational

complexity at all levels.

7.-- living organisms are self-replicating, evolving and self-regulating interactive systems capable of responding to external stimuli. Biology is the story of life on earth. Biology is the story of evolution of living organisms on earth. All living

organisms - present, past and future, are linked to one another by the

sharing of the common genetic material, but to varying degrees.

Answer 5

Living things possess certain characteristics among which few are following * Metabolism * Growth * Reproduction * Locomotion and Movement * Response to stimulus

Answer 6

Cell membrane,dna,RNA ,