Which of the following group of animals is use gills for respiration ?

Options

A. Fishes,Frog, Tadpole larva
B. Fish , Mollusca, Aquatic arthropods
C. Reptiles,Brids, Mammals
D. Insects, Earthworm, Mollusca

Answer

To determine which group of animals uses gills for respiration, we can analyze the options provided. Here’s a step-by-step solution:

### Step 1: Identify the Groups of Animals
We need to look at the different groups of animals mentioned in the question. The groups typically include:
- Fish
- Frogs
- Tadpoles
- Mollusks
- Aquatic arthropods
- Reptiles
- Birds
- Mammals
- Insects
- Earthworms

### Step 2: Analyze Each Group
1. **Fish**: Fish are well-known for using gills to extract oxygen from water. **(Uses gills)**
2. **Frogs**: Adult frogs primarily use lungs for respiration, although they can absorb some oxygen through their skin. **(Does not use gills)**
3. **Tadpoles**: Tadpoles, which are the larval stage of frogs, have gills and rely on them for respiration. **(Uses gills)**
4. **Mollusks**: Many mollusks, such as clams and oysters, have gills (called "ctenidia") for respiration. **(Uses gills)**
5. **Aquatic Arthropods**: Animals like crabs and shrimp have gills for respiration. **(Uses gills)**
6. **Reptiles, Birds, and Mammals**: These groups primarily use lungs for respiration. **(Do not use gills)**
7. **Insects**: Insects have a different respiratory system that includes spiracles and tracheae, not gills. **(Does not use gills)**
8. **Earthworms**: Earthworms respire through their skin, not gills. **(Does not use gills)**

### Step 3: Compile the Results
From the analysis:
- **Fish**: Uses gills
- **Frogs**: Does not use gills
- **Tadpoles**: Uses gills
- **Mollusks**: Uses gills
- **Aquatic Arthropods**: Uses gills
- **Reptiles, Birds, Mammals**: Do not use gills
- **Insects**: Do not use gills
- **Earthworms**: Do not use gills

### Step 4: Conclusion
The groups of animals that use gills for respiration are:
- Fish
- Tadpoles
- Mollusks
- Aquatic arthropods

Thus, the correct answer is the group that includes **fish, mollusks, and aquatic arthropods**.

### Final Answer
The group of animals that use gills for respiration includes **fish, mollusks, and aquatic arthropods**.

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