Year 4 Science : Vertebrates & Invertebrates worksheet | Live ... - Free Printable

Problem Overview:

The task requires filling in the blanks in a table that classifies vertebrate animals into different groups based on their characteristics. The groups are represented by images of animals, and we need to identify the correct characteristics for each group.

Solution Approach:

1. Identify the Groups of Animals:
- Group P: Mammals (Goat and Tiger)
- Group Q: Fish (Ray and Shark)
- Group R: Birds (Penguin and Duck)
- Group S: Reptiles (Snake and Lizard)
- Group T: Amphibians (Lizard and Frog)

2. Understand the Characteristics:
Each group has specific biological characteristics related to:
- Blood type (e.g., warm-blooded, cold-blooded)
- Breathing method
- Reproduction method
- Body covering

3. Fill in the Blanks:
Using the knowledge of vertebrate classification, fill in the characteristics for each group.

---

Filled Table:

| Group of animals | Characteristics |
|------------------|---------------------------------------------------------------------------------|
| Group P | i. Warm-blooded |
| | ii. Breathe through their lungs |
| | iii. Breed by live birth |
| | iv. Body covered with fur/hair |
| Group Q | i. Cold-blooded |
| | ii. Breathe through the gills |
| | iii. Breed by laying eggs |
| | iv. Body covered with scales and have fins |
| Group R | i. Warm-blooded |
| | ii. Breathe through the lungs and have feathers |
| | iii. Breed by laying eggs |
| | iv. Body covered with feathers and have beaks |
| Group S | i. Cold-blooded |
| | ii. Breathe through their lungs or skin |
| | iii. Breed by laying eggs |
| | iv. Body covered with scales |
| Group T | i. Cold-blooded |
| | ii. Breathe through their lungs and gills |
| | iii. Breed by laying eggs |
| | iv. Live in water and on land |

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Explanation of Each Group:

#### Group P: Mammals
- Warm-blooded: Maintain a constant body temperature.
- Breathe through lungs: Use lungs for respiration.
- Breed by live birth: Give birth to live young.
- Body covered with fur/hair: Have fur or hair for insulation.

#### Group Q: Fish
- Cold-blooded: Body temperature varies with the environment.
- Breathe through gills: Extract oxygen from water using gills.
- Breed by laying eggs: Lay eggs in water.
- Body covered with scales and have fins: Scales protect the body, and fins aid in swimming.

#### Group R: Birds
- Warm-blooded: Maintain a constant body temperature.
- Breathe through lungs and have feathers: Use lungs for respiration and have feathers for flight and insulation.
- Breed by laying eggs: Lay eggs with hard shells.
- Body covered with feathers and have beaks: Feathers provide insulation and beaks are used for feeding.

#### Group S: Reptiles
- Cold-blooded: Body temperature varies with the environment.
- Breathe through lungs or skin: Use lungs for respiration; some can also absorb oxygen through their skin.
- Breed by laying eggs: Lay eggs with leathery shells.
- Body covered with scales: Scales protect the body.

#### Group T: Amphibians
- Cold-blooded: Body temperature varies with the environment.
- Breathe through lungs and gills: Young amphibians breathe through gills, while adults use lungs.
- Breed by laying eggs: Lay eggs in water.
- Live in water and on land: Spend part of their life cycle in water and part on land.

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Final Answer:

\boxed{
\begin{array}{|c|c|}
\hline
\text{Group of animals} & \text{Characteristics} \\
\hline
\text{Group P} & \text{i. Warm-blooded} \\
& \text{ii. Breathe through their lungs} \\
& \text{iii. Breed by live birth} \\
& \text{iv. Body covered with fur/hair} \\
\hline
\text{Group Q} & \text{i. Cold-blooded} \\
& \text{ii. Breathe through the gills} \\
& \text{iii. Breed by laying eggs} \\
& \text{iv. Body covered with scales and have fins} \\
\hline
\text{Group R} & \text{i. Warm-blooded} \\
& \text{ii. Breathe through the lungs and have feathers} \\
& \text{iii. Breed by laying eggs} \\
& \text{iv. Body covered with feathers and have beaks} \\
\hline
\text{Group S} & \text{i. Cold-blooded} \\
& \text{ii. Breathe through their lungs or skin} \\
& \text{iii. Breed by laying eggs} \\
& \text{iv. Body covered with scales} \\
\hline
\text{Group T} & \text{i. Cold-blooded} \\
& \text{ii. Breathe through their lungs and gills} \\
& \text{iii. Breed by laying eggs} \\
& \text{iv. Live in water and on land} \\
\hline
\end{array}
}