Note the following features and choose the ones applicable to Wuchereria bancrofti
(a) Coelozoic parasite
(b) Histozoic parasite
( c ) Monogenetic parasite
(d) Digenetic parasite
(e) Monomorphic parasite
(f) Dimorphic pseudocoelomate parasite

Options

A. b, c, f
B. b, d, f
C. a, c, f
D. b, c, e

Answer

To determine the applicable features of Wuchereria bancrofti, we will analyze each option provided in the question step by step.

### Step-by-Step Solution:

1. **Coelozoic parasite**:
- Coelozoic parasites live in the body cavity of the host. Wuchereria bancrofti is not found in the body cavity; it is an endoparasite found in the lymphatic system.
- **Conclusion**: This feature is **not applicable**.

2. **Histozoic parasite**:
- Histozoic parasites live within the tissues of the host. Since Wuchereria bancrofti resides in the lymph nodes and tissues of humans, this feature is applicable.
- **Conclusion**: This feature is **applicable**.

3. **Monogenetic parasite**:
- Monogenetic parasites have a life cycle that involves only one host. Wuchereria bancrofti requires two hosts to complete its life cycle: humans (the primary host) and Culex mosquitoes (the secondary host).
- **Conclusion**: This feature is **not applicable**.

4. **Digenetic parasite**:
- Digenetic parasites have a life cycle that involves two hosts. As established, Wuchereria bancrofti has a digenetic life cycle involving humans and mosquitoes.
- **Conclusion**: This feature is **applicable**.

5. **Monomorphic parasite**:
- Monomorphic parasites have only one stage in their life cycle. Wuchereria bancrofti has two distinct stages: the larval stage and the adult stage, indicating it is not monomorphic.
- **Conclusion**: This feature is **not applicable**.

6. **Dimorphic pseudocoelomate parasite**:
- Dimorphic parasites have two distinct forms or stages in their life cycle, which Wuchereria bancrofti does. Additionally, it belongs to the phylum Aschelminthes, which are pseudocoelomate (having a body cavity that is not a true coelom).
- **Conclusion**: This feature is **applicable**.

### Final Answer:
The applicable features for Wuchereria bancrofti are:
- (b) Histozoic parasite
- (d) Digenetic parasite
- (f) Dimorphic pseudocoelomate parasite