Which of the following would be easily fossilized?

Options

A. Heart
B. Tooth
C. Skin
D. Liver

Answer

To determine which of the given body parts would be easily fossilized, we need to consider a few key factors related to fossilization:

1. **Decomposition Rate**: Organisms decompose more quickly when they are exposed to oxygen. Therefore, parts of the body that are more likely to decompose quickly are less likely to fossilize.

2. **Burial Conditions**: If an organism is buried quickly after death, it experiences less decay, which increases the chances of fossilization. Rapid burial protects the remains from environmental factors that cause decomposition.

3. **Hardness of Material**: Hard parts of organisms, such as bones, shells, and teeth, are more likely to become fossils compared to soft tissues. This is because hard materials are more resistant to decay and can withstand the conditions necessary for fossilization.

Now, let's analyze the options provided:

- **Heart**: This is a soft tissue and would decompose quickly, making it less likely to fossilize.
- **Tooth**: This is a hard structure and has a better chance of being preserved as a fossil due to its durability.
- **Skin**: This is also a soft tissue and would decompose quickly, making it less likely to fossilize.
- **Liver**: Similar to the heart and skin, the liver is a soft tissue and would decompose quickly.

Based on this analysis, the body part that would be easily fossilized is the **tooth**.

### Final Answer:
The body part that would be easily fossilized is **tooth**.