1. The document discusses the different levels of biological organization from atoms to the biosphere. 2. It provides descriptions and examples for each level, from the smallest levels of atoms and molecules, to organelles, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystems, biomes, and the biosphere. 3. The levels of organization show how simple structures combine to form more complex living things, with implications that harm at one level can affect higher levels of organization.

1. Grade 7
LEVELS OF BIOLOGICAL
ORGANIZATION

2. What is life?
What are the characteristics of life?
ENGAGE – MAGNET WORD

3.  Can a piece of rock or metal behave the same way
the makahiya plant and the millipede behave?
Why?
ACTIVITY 1 – INQUIRY LAB

4. [http://ed.ted.com/lessons/making-sense-of-how-life-fits-
together-bobbi-seleski]
MAKING SENSE OF HOW LIFE FITS
TOGETHER

5. ACTIVITY 2 – LEVELS OF BIOLOGICAL
ORGANIZATION
Levels of
Organization
Descriptions
Examples

6. Levels of Biological Organization
Atom Molecule Organelles Cell Tissue
Organ
Organ
System
Organism Population Community
Ecosystem Biome Biosphere
LEVELS OF BIOLOGICAL ORGANIZATION

7. DESCRIPTIONS
Descriptions
It is the smallest unit of
matter that possesses
physical and chemical
properties.
It consists of two or more
atoms that are
chemically bonded
together.
It is a highly organized
assembly of several
macromolecules bonded
together to perform
specific function in the
cell.
It is a collection of
organelles that are
functioning together. It is
the basic unit of life
capable of carrying out
the functions of living
things.
It is a group of distinct
and similar cells that
work together to perform
a specific set of
functions.
It is a group of tissues
organized together to
perform a certain
function.
It consists of several
different organs that
work together to perform
a broad spectrum of
functions.
It is an aggregation or
collection of the organ
systems that work
together to bring about
various life activities.
It is a group of organisms
of the same species
occupying a given area.
These organisms are
freely interacting with
one another.
It consists of all the
populations of different
species of organisms
living together in a given
area. Their interactions
may be harmful,
symbiotic, or
cooperative.
It consists of all the
community of organisms
(biotic components) that
inhabit the same area,
as well as the nonliving
(abiotic) components of
the area and the sets of
interactions that exist
between these two
components.
It pertains to a collection
of ecosystems with
similar climates and
covering a large
geographical area.
It consists of the totality
of the ecosystems of
planet Earth. It also
pertains to any part of
Earth’s sphere where life
exists.

8. EXAMPLES

9. EXAMPLES
Digestive System

10. EXAMPLES

11. Share your work
Choose the best example
THINK-PAIR-SHARE

12. Definition of
TERMS

13. It is the smallest unit of matter that
possesses physical and chemical
properties.
A_o_s

14. It consists of two or more atoms that
are chemically bonded together.
_ol_ _ ul_s

15. It is a highly organizedassembly of
several macromolecules bonded
togetherto perform specific function
in the cell.
O_ _an_l_es

16. It isa collection of organelles that are
functioning together. It is the basic unit of
life capableof carrying out the functions of
living things.
Ce_ _s

17. It is a groupof distinct and similar cells
that work together toperform a
specific set of functions.
T_s_u_

18. It is a group of tissues organized
together to perform a certain
function.
O_g_n_

19. It consistsof severaldifferentorgans that work
together to perform a broad spectrum of
functions.
O_ga_ _ys_e_

20. It is an aggregationor collectionof the organ
systems that work togetherto bring about
variouslife activities.
O_g_ _ i_m

21. Groupof organisms capable
of interbreeding and
producing fertileoffspring.
S_E_I_S

22. A groupof individuals of a given species
that live ina specific geographicarea at
a given time.
P_p_ _at_o_

23. This includes all the
populations in a specific area
at a giventime.
_o_m_n_ _y

24. This includemore than a community ofliving
organisms (biotic)interactingwith the
environment(abiotic).
E_os_s_ _m

25. What will be the
implication if there is harm
on one of the levels of
organization?
VALUES INTEGRATION