LEVELS OF
BIOLOGICAL
ORGANIZATION
JOCELYN C. MOJICA
Teacher I
Prayer
before
Class
Checking
of
Attendance
At the end of the lesson, the
learners are expected to:
1.Identify the different levels of
biological organization
2.Describe each level of biological
organization
3.Demonstrate and explain how each
level is important
RECALL
Focusing specimens using a
compound microscope
What’s New?
FIND ME! (Word Search)
Words can go in
any direction
and share
letters as well as
cross over each
other.
There are ten
(10) words to
find.
What’s New?
FIND ME! (Word Search)
A
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W
E
R
S
LEVELS OF
BIOLOGICAL
ORGANIZATION
JOCELYN C. MOJICA
Teacher I
What I know?
The Spectrum of Biological Organization
Learning
Task 1,
(pp.17-18)
BIOLOGY – the branch of
science that deals with the study
of life.
To understand life, it must be studied
from its basic unit to the most complex.
Living things exhibit a UNIQUE and
COMPLEX hierarchal organization.
Living things are HIGHLY ORGANIZED
and STRUCTURED.
LEVELS OF
BIOLOGICAL
ORGANIZATION
CELL – the simplest and lowest
level
– Considered as the fundamental
structure of an organism
– It is the basic unit of LIFE.
– Smallest unit that can perform
all activities associated with life
like GROWTH, REPRODUCTION,
EXCRETION and NUTRITION.
Red blood
cells
Egg cell and
sperm cells
TISSUE – is a group of cells having
a common structure and functions
– Animal Tissues
– Plant Tissues
Epithelial
Connective
Muscle
Nervous
Vascular
ORGAN – is a group of tissues of
the same structure and adapted to
perform a specific function
Nervous tissues grouped together form a
BRAIN
HEART
Plants have organs, too.
ORGAN SYSTEM – is a group of
organs that work together to
perform a specific function.
ORGANISM – is an
individual form of life
– Organisms are made up of
different organ systems
that enable them to
perform different functions
necessary for living and
survival.
ORGANISMS
POPULATION – a group consisting of
members of the same species that live
together in a given area at the same time.
– A species is a group of
organisms in which two
members are capable of
reproducing sexually.
Examples of POPULATION
A group of fishes in the
ocean
A group of teachers in school
A group of cats at
home
A group of trees in a farm
COMMUNITY – is an association of
different populations of species living
together at the same time and place.
ECOSYSTEM – is a community of
living organisms and the non-living
components
–Components of an
Ecosystem:
 Biotic – living things
(plants and animals)
 Abiotic – non-living
things
BIOMES – a group of similar
ecosystems with the same type of
physical environment
BIOSPHERE – the part of the
planet where life exists
What is in?
1. The cell is the smallest unit of all living things.
2. There are particles smaller than cells. These are the
organelles of the cells such as the nucleus, mitochondria,
ribosomes, golgi bodies and others.
3. Molecules and atoms are much smaller than cells. Nonliving things are consists of atoms and molecules. Nonliving things do not have cells.
4. Not all living things have tissues, organs, and/or organ
systems. These are the unicellular (uni- means one)
organisms such as bacteria.
What is it?
LET’S CRISS-CROSS!
Use the clues below to fill in the
puzzle. Words can go across or
down. Letters may be shared when
the words intersect.
Activity: LET’S CRISS-CROSS!
ACROSS:
4. an individual that is capable of carrying out all processes of living
things
7. non-living factors
11. a group of different tissues that form a singular unit and perform
similar function
12. a group of organs working together to perform a specific
function
14. a group of cells that perform a specific function
15. a group of similar ecosystems with the same type of physical
environment
DOWN:
1. organ responsible for the removal of waste products and excess
fluid from the body
2. a group of organisms of the same kind living in the same area
3. organ responsible for the pumping of blood throughout the body
5. living things
6. portion of the earth where life exists
8. consists of all living things in a given area together with the nonliving things
9. a group of different populations of organisms living in the same
area
10. an abiotic factor needed by living things
13. the smallest unit of all living things
Activity: LET’S CRISS-CROSS!
A
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What’s more?
ANALOGY
Let’s test your understanding of the levels of biological
organization through analogies. You will be tasked to
complete the following analogies. (Learning Task 4, p.19)
Here is an example of analogy in
English:
CELL
TISSUE
ORGAN
ORGAN SYSTEM
ORGANISM
:
:
:
:
:
Letters
Words
Sentences
Paragraphs
Stories
1. Your school
Cell
: ___________________
Tissue
: ___________________
Organ
: ___________________
Organ System : __________________
Organism
: __________________
3. Our country, the Philippines
Cell
: ___________________
Tissue
: ___________________
Organ
: ___________________
Organ System : __________________
Organism
: __________________
2. Your municipality or city
Cell
: ___________________
Tissue
: ___________________
Organ
: ___________________
Organ System : __________________
Organism
: __________________
4. Make your own analogy: _______
Cell
: ____________________
Tissue
: ____________________
Organ
: ____________________
Organ System : ___________________
Organism
: ___________________
What I have learned
DIFFERENTIATED
TASKS
ASSESSMENT
INTEGRATIVE ASSESSMENT
The class will be divided into three (3) groups and will be given
differentiated tasks. These tasks will determine their understanding
of the different levels of biological organization. The groups will be
given 10mins to perform the task and then, 2 minutes each to
present their outputs.
The group will be given points based on a rubric.
–Group 1: Role-playing/Dula-dulaan
–Group 2: Chant or Jingle
–Group 3: Graphic Organizer
REFLECTION
In your notebook, write your reflection
about the lesson by completing the
statements below.
I understand that _______________________
I realize that ___________________________
Thank
you!