Reflection 1. Explain why you chose that $$ p $$ statement(s). - I chose the whale evolution p $$ \qquad $$ because... 2. What do you WONDER about wh evolution? - I wonder... 40L 22 blue whale Rewercoteramwalis) lergth 29.5 m (97 it) - 2010 Engotronta Bramica be Cetacea is the scientific term for the group of marine mammals the includes whales, dolphins, and porpoises. Check which of the statement(s) below do you think is/are TRUE? 1. Cetaceans share a more recent common ancestor with land mammals than with fish. 2. Cetaceans are more closely related to a pig or deer than a shark. 3. Cetaceans' closest living relative is the hippopotamus. How can you calculate the electric

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Let's break down your reflection and questions regarding whale evolution and the statements about cetaceans.

### 1. Explanation of the Chosen Statement
- **I chose the whale evolution p statement because...**
  - The evolution of whales is a fascinating example of how species adapt to their environments over millions of years. It highlights the transition from land-dwelling mammals to fully aquatic creatures, showcasing the incredible changes in anatomy and behavior that have occurred. Understanding this evolution can provide insights into the broader principles of evolution and adaptation in response to environmental pressures.

### 2. Wondering About Whale Evolution
- **I wonder...**
  - I wonder how the evolutionary adaptations of whales have influenced their behavior and social structures. For instance, how do their communication methods and social interactions differ from those of their land-dwelling ancestors? Additionally, I am curious about the impact of human activity on their evolution and survival in modern times.

### Checking the Truth of Statements
Now, let's evaluate the statements regarding cetaceans:

1. **Cetaceans share a more recent common ancestor with land mammals than with fish.**
   - This statement is **TRUE**. Molecular and fossil evidence indicates that cetaceans (whales, dolphins, and porpoises) are more closely related to land mammals, such as hippos, than to fish.

2. **Cetaceans are more closely related to a pig or deer than a shark.**
   - This statement is **TRUE**. As mentioned, cetaceans share a more recent common ancestor with land mammals, including pigs and deer, than with sharks, which are fish.

3. **Cetaceans' closest living relative is the hippopotamus.**
   - This statement is **TRUE**. Genetic studies have shown that hippos and cetaceans share a common ancestor, making hippos their closest living relatives among land mammals.

### Conclusion
In summary, the evolution of whales is a compelling topic that raises many questions about adaptation and the relationships between different species. The statements regarding cetaceans are all true, reflecting their unique evolutionary history and connections to land mammals. If you have any further questions or need clarification on any points, feel free to ask!
Whales evolved from land-dwelling mammals, sharing a more recent common ancestor with hippos than with fish or sharks. Their closest living relative is the hippopotamus.

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