The space between the visceral hump and dorsal spongy skin is called ________in which _________ in case of molluscs -

Options

A. Mantle cavity, gill
B. Body cavity and shell
C. Viscera and shell
D. Shell and Viscera

Answer

**Step-by-Step Solution:**

1. **Identify the Components**: In the question, we need to identify two components: the space between the visceral hump and the dorsal spongy skin, and what is found in that space in the case of molluscs.

2. **Define the Space**: The space between the visceral hump and the dorsal spongy skin in molluscs is known as the **mantle cavity**. This cavity plays a crucial role in various physiological processes.

3. **Function of the Mantle Cavity**: The mantle cavity is significant because it houses the **gills** of the molluscs. These gills are essential for the process of gas exchange, which is vital for respiration.

4. **Complete the Sentence**: Therefore, we can fill in the blanks in the question as follows: "The space between the visceral hump and dorsal spongy skin is called **mantle cavity** in which **gills** are present in case of molluscs."

**Final Answer**: The space between the visceral hump and dorsal spongy skin is called **mantle cavity** in which **gills** are present in case of molluscs.

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