Which organisms belong to more than one food chain?

Which organisms belong to more than one food chain?

Answers

Mushrooms because they eat dead things and form poison to certain organisms.

All the organisms that are given here belong to more than one food chain.

The plants are considered as the autotrophs that is the basic level of every food chain. It is consumed by the primary consumers.

Snake is considered as the secondary consumers as it can eat frog, insects, rat et cetera.

Birds can also feed on plants and small insects.

Frog can feed on the butterfly, dragon fly, et cetera.

Insects can eat plants, fruits et cetera.

A trophic level pertains to the position of an organism in the food chain. Humans are  the mos dominant organism that belong to more than one trophic level. When we eat plants we become the primary consumers but when we eat meat we can become the secondary or the tertiary consumers.

Birds are also organisms that belong to more than one trophic level. When birds eat seeds they become the primary consumer, but when they eat insects they become the secondary or even the tertiary consumers. 

A plant is the thing that every organism eats so a plant
Any animal that eats meat like snakes and even some herbivores like moose
Birds are one of the animals that has more than one food chain
Example 1:

Human being (Man) is an omnivore, i.e. its feeds on both plants and animals.
When man feeds on plant, he becomes a herbivore (occupying the Second Trophic level).
When he eat animals (meat), he becomes a carnivore thus occupying higher tropic level in the food chain.
Example 2:

Consider the following three food chains:

First Chain: Grass (T1) → Grasshopper (T2) → Lizard (T3) → Hawk (T4)

Second Chain: Grass (T1) → Grasshopper (T2) → Hawk (T3)

Third Chain: Grass (T1) → Grasshopper (T2) → Frog (T3) → Snake (T4) → Hawk (T5)

In the First food chain, Hawk occupies the Fourth Trophic level, i.e. it is a Secondary carnivore.

In the Second food chain, Hawk occupies the Third Trophic level, i.e. it is a Primary Carnivore.

In the Third food chain, Hawk occupies the Fifth trophic level, i.e. it is a Top-level carnivore.

Thus, Humans (Man) and Hawk occupies more than one trophic level in the ecosystem.

Im pretty sure birds are the only organisms that belong to more than one trophic level
Please be more specific in the question or give us answer choices if there are any.
They all belong to more than one food chain except the frog. The insect is the prey for many food chains, and the snake is widely at the top...

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