In frog the phalangeal formula for hand is

Options

A. 0, 2, 2, 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 the hand of a frog, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Phalangeal Formula**: The phalangeal formula is a way to describe the number of phalanges (finger bones) in each digit of an animal's limb. It is represented as a series of numbers corresponding to the number of phalanges in each digit.

2. **Identify the Limbs of Frogs**: Frogs have two types of limbs: forelimbs (front limbs) and hind limbs (back limbs). The question specifically asks about the forelimbs.

3. **Count the Phalanges in Frog Forelimbs**:
- Frogs typically have four digits on their forelimbs.
- The phalangeal distribution for frogs is as follows:
- 1st digit (thumb): 0 phalanges
- 2nd digit: 2 phalanges
- 3rd digit: 2 phalanges
- 4th digit: 3 phalanges
- Therefore, the phalangeal formula for the frog's hand is represented as: **0, 2, 2, 3**.

4. **Select the Correct Option**: Based on the analysis, the correct phalangeal formula for the hand of a frog is **0, 2, 2, 3**.

### Final Answer:
The phalangeal formula for the hand of a frog is **0, 2, 2, 3**.

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