Food chains always begin with producers like plants, which use sunlight to produce energy in the form of food. A food chain represents a single path of energy transfer from one organism to the next, starting with a producer and ending with a top predator or decomposer. A food web depicts the complex and interconnected feeding relationships between multiple organisms in an ecosystem, as one organism can be part of multiple food chains by being consumed by different predators. It shows how energy flows between organisms in an environment.

1. ALLAMMA IQBAL OPEN
UNIVERSTY ISLAMABAD
Name Maqbool qumar
ROLL NO bt615806
GROUP 3490
COURSE Code 8608

2. Topic name
Biotic components and their relation
with Food chain and Web chain
• Slo’s
• 1.why food chains always begin with
producer
• 2.Describe two food chain in the environment
around us .
• 3.Explain a food web

3. Relation with food chain and food web
• Every organism needs energy to live which is
obtained by him from food. You have studied
that producers prepare food after absorbing
the energy of sunlight . All organisms depend
directly or indirectly on the food prepared by
producers . Organisms have close feeding
relationship among themselves. These
relationship among organisms are represented
by food chains and food web

4. Food chain
In any ecosystem the transfer of
energy from one organism to another
organism take place in the form of
food

6. Food web Food web
An organism
can be a part
of one or
more than
one food
chain . For
example a rat
can be eaten
either by a
snake or cat
or owl .