Complete the food chains by dragging and dropping the animals in the correct order.

To solve the problem, we need to arrange the animals and plants in each food chain in the correct order. A food chain shows the flow of energy from one organism to another, starting with a producer (usually a plant) and ending with a top predator.

Step-by-Step Solution:

#### 1)
- Images: Lion, Leaves (Plant), Deer
- Explanation:
- Plants (leaves) are producers that convert sunlight into energy through photosynthesis.
- Deer are herbivores that eat plants.
- Lions are carnivores that prey on deer.
- Correct Order:
\[
\text{Leaves} \rightarrow \text{Deer} \rightarrow \text{Lion}
\]

#### 2)
- Images: Grasshopper, Eagle, Grass, Frog
- Explanation:
- Grass is a producer that provides energy for herbivores.
- Grasshoppers are herbivores that eat grass.
- Frogs are predators that eat grasshoppers.
- Eagles are top predators that eat frogs.
- Correct Order:
\[
\text{Grass} \rightarrow \text{Grasshopper} \rightarrow \text{Frog} \rightarrow \text{Eagle}
\]

#### 3)
- Images: Owl, Wheat, Mouse, Snake
- Explanation:
- Wheat is a producer that provides energy for herbivores.
- Mice are herbivores that eat wheat.
- Snakes are carnivores that eat mice.
- Owls are top predators that eat snakes.
- Correct Order:
\[
\text{Wheat} \rightarrow \text{Mouse} \rightarrow \text{Snake} \rightarrow \text{Owl}
\]

Final Answer:

\[
\boxed{
\begin{array}{l}
1) \text{Leaves} \rightarrow \text{Deer} \rightarrow \text{Lion} \\
2) \text{Grass} \rightarrow \text{Grasshopper} \rightarrow \text{Frog} \rightarrow \text{Eagle} \\
3) \text{Wheat} \rightarrow \text{Mouse} \rightarrow \text{Snake} \rightarrow \text{Owl}
\end{array}
}
\]