The phalangeal formula for frog's foot is

Options

A. 0, 2, 3, 3, 3
B. 2, 2, 3, 3, 4
C. 2, 2, 3, 4, 3
D. 2, 3, 3, 3, 3.

Answer

To determine the phalangeal formula for a frog's foot, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Phalangeal Formula**: The phalangeal formula indicates the number of phalanges (the bones in the digits) present in each digit of an animal's limb. It is typically represented in a sequence that corresponds to the digits of the limbs.

2. **Identifying the Limbs of a Frog**: Frogs have two types of limbs: forelimbs (front legs) and hind limbs (back legs). Each limb has a different phalangeal formula.

3. **Phalangeal Formula for Frog's Forelimbs**: For the forelimbs of a frog, the phalangeal formula is 0, 2, 2, 3. This means:
- The first digit has 0 phalanges.
- The second digit has 2 phalanges.
- The third digit has 2 phalanges.
- The fourth digit has 3 phalanges.

4. **Phalangeal Formula for Frog's Hind Limbs**: For the hind limbs of a frog, the phalangeal formula is 2, 2, 3, 4. This means:
- The first digit has 2 phalanges.
- The second digit has 2 phalanges.
- The third digit has 3 phalanges.
- The fourth digit has 4 phalanges.

5. **Conclusion**: Based on the information provided, the complete phalangeal formula for a frog's foot (considering both forelimbs and hind limbs) is:
- Forelimbs: 0, 2, 2, 3
- Hind Limbs: 2, 2, 3, 4

### Final Answer:
The phalangeal formula for a frog's foot is:
- Forelimbs: 0, 2, 2, 3
- Hind Limbs: 2, 2, 3, 4