1. THOPHIC RELATIONSHIPS.
DE: VANESSA DE MIGUEL PUENTE
5º A

2. In an ecosystem, we can group organisms by the things that they feed on. This group forms a different trophic
Level.

3. PRODUCERS Pants and algae are producers :they make their own food.

4. PRIMARY CONSUMERS
Herbivorous organisms are primary
consumers:they feed on plant and
Algae.

5. SECONDARY CONSUMERS
Carnivorous organisms are secondary consumers:they feed on herbivorous.

6. Tertiary consumers feed on secondary consumers.

7. DECONPOSERS.
Fungi and bacteria are decomposers:they break down the remains of dead organisms.

8. FOOD CHAING AND FOOD WEB.
A trophic chain or food chaing represent the interrelationships between organisms on different trophic levels.

9. THOPHIC WEB OR FOOD WEB.
A trophic web or food web represents all the different food chains within an ecosystem.

10. VIDEOS. nM

11. QUESTIONS What is trophic level? What are producers?
What are decomposers?
What represent the interrelationships between organisms on different trophic level?
What represent all different food chains within an ecosystem?

12. ANSWERS
Trophic level is a group of organisms by the things that they feed on.
A producer is thing that make their own food. For example: plants and algae.
The decomposer is a bacteria or fungi that they break down the remains of dead organisms.
Trophic chains or food chains
Trophic webs or food webs

13. THE END