Brain of cockroach supplies nerves to

Options

A. Antennae
B. Compound eyes
C. Anal cerci
D. Both 1 and 2

Explanation

**Step-by-Step Solution:**

1. **Understand the Nervous System of Cockroach**: The cockroach has a nervous system that consists of a series of ganglia, which are clusters of nerve cell bodies. These ganglia are fused and arranged in segments along the body.

2. **Identify the Brain of the Cockroach**: The brain of the cockroach is referred to as the supraesophageal ganglion. This ganglion is located in the head region of the cockroach.

3. **Determine the Functions of the Brain**: The supraesophageal ganglion (brain) is responsible for supplying sensory nerves to various parts of the cockroach, particularly the sensory organs.

4. **Identify the Sensory Organs Supplied by the Brain**: The brain supplies nerves to the compound eyes and the antennae. Both of these are important sensory organs that help the cockroach perceive its environment.

5. **Consider Other Options**: The anal saccae is another sensory organ, but it is located in the abdominal region and is supplied by the ganglia present in that area, not by the brain.

6. **Conclusion**: Since the brain supplies nerves to both the compound eyes and the antennae, the correct answer to the question is "both 1 and 2".

**Final Answer**: The brain of the cockroach supplies nerves to both the antennae and the compound eyes.

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