In which organ the bulk is formed of endoderm

Options

A. Intestine
B. Liver
C. Heart Kidney.
D. Kidney.

Answer

To answer the question "In which organ the bulk is formed of endoderm?", we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Layers of Germ Cells**:
- The human embryo has three primary germ layers: ectoderm, mesoderm, and endoderm. Each layer gives rise to different organs and tissues in the body.

2. **Identify the Role of Endoderm**:
- The endoderm is the innermost germ layer and primarily forms the lining of the digestive tract and associated organs. It also contributes to the formation of several glands.

3. **Analyze the Options**:
- A. Intestine: The intestine is primarily lined by endoderm, but it is not the only organ formed from it.
- B. Liver: The liver is entirely derived from the endoderm and is a major organ formed from this layer.
- C. Heart: The heart is primarily derived from mesoderm, not endoderm.
- D. Kidney: The kidney also originates from the mesoderm.

4. **Determine the Correct Answer**:
- Since the liver is entirely formed from endoderm, it is the organ that fits the question best. Therefore, the answer is option B, liver.

### Final Answer:
The organ in which the bulk is formed of endoderm is **B. Liver**.

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