Give appropriate names of the respective phyla and one example for each of the following:
Animals with a long, cylindrical, and unsegmented body but without a true coelom________________.

Explanation

To answer the question regarding animals with a long, cylindrical, and unsegmented body but without a true coelom, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Characteristics**: The question specifies animals that have a long, cylindrical, unsegmented body and lack a true coelom.

2. **Recall the Definition of Coelom**: A true coelom is a body cavity that is completely lined by mesoderm. Animals without a true coelom are referred to as having a pseudocoelom or being acoelomate.

...