Identify the homologous or analogous pairs of organs among the following by giving proper justification:
Flippers of dolphin and penguin.

Explanation

To determine whether the flippers of a dolphin and a penguin are homologous or analogous, we can follow these steps:

### Step 1: Define Homologous and Analogous Organs
- **Homologous organs** are those that have a similar structure and origin but may serve different functions. They indicate a common ancestry.
- **Analogous organs** are those that have similar functions but different structures and origins. They do not indicate a common ancestry.

### Step 2: Analyze the Flippers of Dolphin and Penguin
- **Dolphin Flippers**: Dolphins are mammals and their flippers are modified forelimbs. They have bones similar to those found in the forelimbs of other mammals, such as humans.
...