How should the arrows be placed to show the correct flow of energy in the food chain: Shark, Squid, Minnows, Zooplankton, Algae?

What the arrows in a food chain mean

In a food chain, arrows show the direction that energy moves. Energy moves from the organism that is eaten (food source) to the organism that eats it (consumer).

Identify the producer and consumers

• Producer (makes its own food by photosynthesis): Algae
• Primary consumer (eats producer): Zooplankton
• Secondary consumer (eats primary consumer): Minnows
• Tertiary consumer (eats secondary consumer): Squid
• Top predator: Shark

Put the organisms in eating order

Algae are eaten by zooplankton, zooplankton are eaten by minnows, minnows are eaten by squid, and squid are eaten by sharks.

So the correct arrow order is:

$$\text{Algae} \rightarrow \text{Zooplankton} \rightarrow \text{Minnows} \rightarrow \text{Squid} \rightarrow \text{Shark}$$