Mark the false statements

Options

A. Frog is a ureotelic animal
B. There are ten pairs of cranial nerves arising from brain
C. Forebrain includes cerebellum and medulla oblongata
D. Midbrain is characterised by a pair optic lobes with optocoel

Answer

To determine which statement is false, we will analyze each statement one by one.

### Step-by-Step Solution:

1. **Statement 1: Frog is a ureotelic organism.**
- Frogs excrete urea as their primary nitrogenous waste. This is characteristic of ureotelic organisms.
- **Conclusion:** This statement is **true**.

2. **Statement 2: There are 10 pairs of cranial nerves arising from the brain.**
- Frogs do indeed have 10 pairs of cranial nerves. This is a standard feature of amphibians.
- **Conclusion:** This statement is **true**.

3. **Statement 3: The forebrain includes cerebellum and medulla oblongata.**
- The cerebellum and medulla oblongata are actually parts of the hindbrain, not the forebrain. The forebrain primarily consists of the cerebrum and other structures.
- **Conclusion:** This statement is **false**.

4. **Statement 4: Midbrain is characterized by a pair of optic lobes with optocele.**
- The midbrain of frogs does contain optic lobes, which are involved in visual processing. The term "optocele" refers to the cavity associated with these lobes.
- **Conclusion:** This statement is **true**.

### Final Answer:
The false statement is **Statement 3**: "The forebrain includes cerebellum and medulla oblongata."

---