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It includes all

living organismson earth,

together with the

dead organic

matter produced

by them.

It is the biologicalcomponent of

earth systems,

which also include

the lithosphere,

hydrosphere,atmosphere and

other "spheres“.

The BIOSPHERE

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a forest of trees

and undergrowth

plants, inhabitedby animals and

rooted in soil

containing

bacteria and

fungi

It is an interactinggroup of various

species in a

common location.

The Community

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They are capable

of some degree

of response tostimuli,

reproduction,

growth and

development

and homeostasis.

when it has onecell it is known as

a unicellular

organism; and

when it has more

than one it isknown as

a multicellular

organism

The Organism

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It is a group of

tissues in a living

organism thathave been

adapted to

perform a

specific function.

In higher animals,

organs are

grouped into

organ systems.

The Organ

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It is is an

ensemble of

similar cells fromthe same

origin that

together carry

out a specific

function.

The study of tissue

is known

as histology.

The Tissues

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It is the basic

structural,functional, and

biological unit of

all known living

organisms.

A cell is the

smallest unit of

life that

can replicate

independently,

and cells are often

called the

"building blocks

of life".

The Cell

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It is a specialized

subunit withina cell that has a

specific function.

Individual

organelles are

usually separately

enclosed within

their own lipid

bilayers.

The Organelle

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It is an

electrically

neutral group of

two or more

atoms held

together by

chemical bonds.

Molecules as

components of

matter are

common in

organic substances

(and therefore

biochemistry).

The Molecule

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It is the smallest

constituent unit

of ordinary

matter that has

the properties of

a chemical

element.

Atoms are very

small; typical sizes

are around

100 pm (a ten-

billionth of a

meter, in the short

scale).

The Atom

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They are particles

much smaller

than atoms.

There are two

types of

subatomic

particles: element

ary particles,

which according to

current theories

are not made of

other particles;

and composite

particles.

The Sub-atomic Particle

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BIOSPHERE Community

Organism OrganSystem

Organ

TissueCell

Organelle

Molecule AtomSub-atomic Particle