Science worksheet for Class V on interdependence in living beings—plants and animals, featuring a consumer classification table, a food chain diagram, and images promoting environmental balance.

Worksheet: Interdependence in Living Beings - Plants and Animals

#### I. Complete the following table:
The task is to classify the given animals as primary, secondary, or tertiary consumers based on their feeding habits.

| Consumer | Consumer Type |
|----------|---------------|
| i. Goat | Primary |
| ii. Lion | Tertiary |
| iii. Bear | Secondary/Tertiary (depending on diet) |
| iv. Horse | Primary |

Explanation:
- Goat: Primarily eats plants (herbivore), so it is a primary consumer.
- Lion: Primarily eats other animals (carnivore), so it is a tertiary consumer.
- Bear: Bears can be omnivores or carnivores. If they eat primarily meat, they are secondary or tertiary consumers. If they eat plants, they can also be primary consumers.
- Horse: Primarily eats plants (herbivore), so it is a primary consumer.

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#### II. Choose the correct option by observing the picture given below:

1. A food chain always begins from a _________.
- Answer: Producer
- Explanation: Food chains start with producers, which are organisms that produce their own food through photosynthesis (e.g., plants).

2. The living organisms that produce their own food are called _________.
- Answer: Producers
- Explanation: Producers are organisms like plants that make their own food using sunlight, water, and carbon dioxide through photosynthesis.

3. All the food chains are ________ to each other.
- Answer: Interconnected
- Explanation: Food chains are not isolated; they are interconnected to form a larger network called a food web. Organisms often belong to multiple food chains.

4. Absence of any living organism upsets the _________ in nature.
- Answer: Balance/Ecosystem
- Explanation: Every organism plays a role in maintaining the balance of an ecosystem. The removal of any species can disrupt the food web and lead to imbalances.

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#### III. Identify the pictures given and choose the correct option to maintain balance in nature:

1. First Picture: People planting a tree.
- Correct Option: Planting trees helps maintain the balance in nature by increasing oxygen levels, providing habitats for animals, and preventing soil erosion.

2. Second Picture: A polluted environment with factories emitting smoke.
- Correct Option: Reducing pollution and promoting clean energy sources helps maintain ecological balance by protecting air quality and biodiversity.

3. Third Picture: A hand holding a plant leaf and an antelope.
- Correct Option: Protecting natural resources (like plants) and wildlife (like the antelope) helps maintain the balance in nature by ensuring the survival of all species.

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Final Answers:

#### Part I:
| Consumer | Consumer Type |
|----------|---------------|
| i. Goat | Primary |
| ii. Lion | Tertiary |
| iii. Bear | Secondary/Tertiary |
| iv. Horse | Primary |

#### Part II:
1. Producer
2. Producers
3. Interconnected
4. Balance/Ecosystem

#### Part III:
1. Planting trees
2. Reducing pollution
3. Protecting natural resources and wildlife

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Boxed Final Answer:

\boxed{
\begin{array}{l}
\text{Part I:} \\
\begin{array}{|c|c|}
\hline
\text{Consumer} & \text{Consumer Type} \\
\hline
\text{i. Goat} & \text{Primary} \\
\hline
\text{ii. Lion} & \text{Tertiary} \\
\hline
\text{iii. Bear} & \text{Secondary/Tertiary} \\
\hline
\text{iv. Horse} & \text{Primary} \\
\hline
\end{array} \\
\text{Part II:} \\
1. \text{Producer} \\
2. \text{Producers} \\
3. \text{Interconnected} \\
4. \text{Balance/Ecosystem} \\
\text{Part III:} \\
1. \text{Planting trees} \\
2. \text{Reducing pollution} \\
3. \text{Protecting natural resources and wildlife} \\
\end{array}
}