The most accepted line of descent in human evolution is

Options

A. ` " Australopithecus " rarr " Ramapiecus " rarr " Homo sapiens " rarr " homosaipns `
B. Homo erectus `rarr` Homo habilis `rarr` Homo sapiens
C. Ramapithecus `rarr` Homo habilis `rarr` Homo erectus `rarr` Homo sapiens
D. Australopithecus `rarr` Ramapithecus `rarr` Homo erectus `rarr` Homo habilis `rarr` Homo sapiens

Answer

To determine the most accepted line of descent in human evolution, we can follow these steps:

### Step 1: Identify the key species in human evolution
The key species in human evolution include:
- Ramapithecus
- Australopithecus
- Homo habilis
- Homo erectus
- Homo sapiens

### Step 2: Establish the timeline for each species
1. **Ramapithecus**: Appeared about 14 to 15 million years ago.
2. **Australopithecus**: Lived between 4.4 to 2 million years ago.
3. **Homo habilis**: Emerged around 2 million years ago.
4. **Homo erectus**: Appeared approximately 1.5 million years ago.
5. **Homo sapiens**: Modern humans appeared around 10,000 years ago.

### Step 3: Arrange the species in chronological order
Based on the timeline established:
1. Ramapithecus
2. Australopithecus
3. Homo habilis
4. Homo erectus
5. Homo sapiens

### Step 4: Analyze the provided options
Now, we will evaluate the options given in the question:
1. Australopithecus, Ramapithecus - Incorrect (Ramapithecus came first)
2. Homo erectus, Homo habilis, Homo sapiens - Incorrect (Homo habilis came before Homo erectus)
3. Ramapithecus, Homo habilis, Homo erectus, Homo sapiens - Correct (This follows the correct order)
4. Australopithecus, Ramapithecus - Incorrect (Again, Ramapithecus came first)

### Step 5: Conclusion
The most accepted line of descent in human evolution is:
**Ramapithecus → Australopithecus → Homo habilis → Homo erectus → Homo sapiens.**

Thus, the correct answer is option 3: Ramapithecus, Homo habilis, Homo erectus, and Homo sapiens.

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