Endocrine glands lack ducts and are hence, called____glands and their secretions are called_____

Answer

To answer the question "Endocrine glands lack ducts and are hence, called____glands and their secretions are called_____," we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Endocrine Glands**:
- Endocrine glands are specialized glands in the body that secrete hormones directly into the bloodstream rather than through ducts.

2. **Identifying the Type of Glands**:
- Since these glands do not have ducts, they are referred to as "ductless glands."

3. **Identifying the Secretions**:
- The substances that these glands secrete are known as "hormones."

4. **Filling in the Blanks**:
- Therefore, the first blank can be filled with "ductless" and the second blank can be filled with "hormones."

### Final Answer:
Endocrine glands lack ducts and are hence called **ductless** glands and their secretions are called **hormones**.

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