The plant body in higher plants is well differentiated and well developed. Roots are the organs used for the purpose of absorption. What is the equivalent of roots in the less developed lower plants?

Explanation

### Step-by-Step Solution:

1. **Understanding Plant Differentiation**: In higher plants, the plant body is well differentiated into distinct organs such as roots, stems, and leaves. This differentiation allows for specialized functions, including absorption, support, and photosynthesis.

2. **Role of Roots**: In higher plants, roots are primarily responsible for the absorption of water and nutrients from the soil. They anchor the plant and provide stability.

3. **Lower Plants**: In less developed plants, such as bryophytes (e.g., mosses) and pteridophytes (e.g., ferns), the plant body is not as differentiated. These plants do not have true roots, stems, or leaves like higher plants.

...