M. Dicdican presentation

1. Differentiate biotic from abiotic
components of an ecosystem

2. ABIOTIC OR BIOTIC?
Changing Weather
ABIOTIC

3. ABIOTIC OR BIOTIC?
ABIOTIC
Fertile soil

4. ABIOTIC OR BIOTIC?
BIOTIC
FERNS

5. ABIOTIC OR BIOTIC?
ABIOTIC
Long growing season

6. ABIOTIC OR BIOTIC?
BIOTIC
Monitor Lizard

7. ACTIVITY
Directions: Differentiate biotic from abiotic
components of an ecosystem in terms of
meaning, factors, and functions. Use the Venn
diagram as shown below. Place the similarities
at the center and the differences at the
opposite circles of the diagram. Write your
answer on a separate sheet of paper

8. ABIOTIC
FACTORS
BIOTIC
FACTORS
BOTH

9. ABIOTIC FACTORS
Abiotic factors refer to non-living physical and
chemical elements in the ecosystem.
Abiotic resources are usually obtained from the
lithosphere, atmosphere, and hydrosphere.
Examples of abiotic factors are water, air, soil,
sunlight, and minerals.

10. Water is one of the most important abiotic factors that carry
life to all living things. It covers the largest part of the world such
as the ocean, rivers, lakes and other bodies of water which are
considered the habitats of marine organisms. It is a component
that completes the process of food making in plants which is
known as photosynthesis.
Sunlight is another necessary abiotic factor in an ecosystem. It
plays a vital role in photosynthesis in order for the plants to
sustain the production of food for other living organisms.
Without this factor, few organisms will be able to survive.
ABIOTIC FACTORS

11. Oxygen is also an abiotic factor produced by plants
that support breathing among humans and animals. It
helps decompose decaying matters around us.
Temperature a measure of the degree of hotness
or coldness. It affects the kind of living organisms that
can survive in a certain place.
ABIOTIC FACTORS

12. Soil is an abiotic factor where the plants grow
and live. It contains rock fragments and nutrients
coming from the remains of decaying bodies. It is
also a home for different microorganisms and
living organisms like plants.
Minerals/Nutrients are other essential
substances from the soil needed by plants and
animals for their growth.
ABIOTIC FACTORS

13. Air in the atmosphere is comprised of gases
needed for the growth and development of
organisms. An example of this is the carbon
dioxide which is needed by plants for food
production; and oxygen which is a gas needed by
humans and animals for respiration.
ABIOTIC FACTORS

14. BIOTIC FACTORS
Biotic factors are living or once-living organisms in
the ecosystem.
These are obtained from the biosphere and are
capable of reproduction.
Examples of biotic factors are animals, birds, plants,
fungi, and other similar organisms.

15. BIOTIC FACTORS
Human beings are one of the biotic components of
an ecosystem and they depend from plants for food
because they are not capable of producing own.
Animals and human beings are alike in many ways.
They are also biotic components that compose the
ecosystem and help sustain the needs of other living
organisms. Animals get food from the ecosystem such
as plants, insects and mammals alike as well as the
other forms of prey.

16. BIOTIC FACTORS
Plants and grasses are also part of the biotic
components of an ecosystem. They provide food and
other important elements like oxygen to humans and
animals. They also become source of shelter and other
materials in the ecosystem.
Bacteria and decomposers are also biotic
components that help break down the remains of
other living organisms by converting them into
nutrients found in soil.

17. COMPARISON OF ABIOTIC AND
BIOTIC FACTORS OF ECOSYSTEM
BASIS FOR
COMPARISON
ABIOTIC
FACTORS
BIOTIC
FACTORS
Meaning Abiotic factors
are the non-
living things of
an ecosystem.
Biotic factors
are the living
things of an
ecosystem.

18. COMPARISON OF ABIOTIC AND
BIOTIC FACTORS OF ECOSYSTEM
BASIS FOR
COMPARISON
ABIOTIC
FACTORS
BIOTIC
FACTORS
Examples Sunlight,
temperature,
energy, the
wind, water,
soil, etc.
Plants, trees,
animals,
microorganism,
etc.

19. COMPARISON OF ABIOTIC AND
BIOTIC FACTORS OF ECOSYSTEM
BASIS FOR
COMPARISON
ABIOTIC FACTORS BIOTIC FACTORS
It affects The individual of a
particular species, their
population, community,
ecosystem and the
biosphere.
The biome, individual
of a particular
species, biosphere,
population.

20. COMPARISON OF ABIOTIC AND
BIOTIC FACTORS OF ECOSYSTEM
BASIS FOR
COMPARISON
ABIOTIC
FACTORS
BIOTIC
FACTORS
Dependency Abiotic factors
do not depend
on biotic factors
for their
survival.
Biotic factors
depend on
abiotic factors
for their
survival.

21. COMPARISON OF ABIOTIC AND
BIOTIC FACTORS OF ECOSYSTEM
BASIS FOR
COMPARISON
ABIOTIC
FACTORS
BIOTIC FACTORS
Limiting Factors Due to changes in the abiotic
factors, it may sometimes
limit the growth and
development of a particular
species or their population or
sometimes may hamper the
entire ecosystem.
Due to any uncertain
changes in particular
species, may bring
changes in the other
species also, which
directly or indirectly
bank on them

22. COMPARISON OF ABIOTIC AND
BIOTIC FACTORS OF ECOSYSTEM
BASIS FOR
COMPARISON
ABIOTIC
FACTORS
BIOTIC
FACTORS
Approach
towards
changes
These factors
do not adapt
any changes.
These factors
can adapt the
changes, in
order to
survive.

23. Similarities between the Abiotic
and Biotic Factors:
They both ( abiotic and biotic factors)
may affect the individual of a particular
species, their population, community,
ecosystem and the biosphere.

24. QUESTIONS:
How do biotic factors differ from abiotic factors in terms of
function or influence in an ecosystem?
 Do you think that living and non-living things depend on
each other in order to survive? Why do you think so?
What makes living things different from non-living?
Do you think both biotic and abiotic components are
important to the ecosystem? Why do you think so?

25. Directions: Below are statements describing the components of the
ecosystem. Write B if it tells about the biotic component and AB if
it tells about the abiotic component.
1. It describes the non-living factors in the environment which
affects the ecosystem.
2. It is consist of living things interacting in an ecosystem.
3. This includes the organisms that are classified as autotrophs
and heterotrophs.
4. Some examples of this component are water, light and wind.
5. It plays an important role in the survival and reproduction of
organisms in the environment.

26. References:
https://biodifferences.com/difference-between-abiotic-and-biotic-factors.html
Test item Bank page 59 nos. 1 to 5
SL< Quarter 2 Module 7
LAs