How many of the given statements are true?

A) In a cockroach, the brain is represented by a supra-oesophageal ganglion that supplies nerves to the maxillary and labial palps.
B) The compound eyes are situated at the ventral surface of the head.
C) Each compound eye consists of 200 hexagonal ommatidia.

One

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Two

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Three

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None of the above

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Solution

The correct option is A One
The supra-oesophageal ganglion, present in the head region of a cockroach, supplies nerves to the antennae and compound eyes. The compound eyes are located at the dorsal surface of the head and each of the eyes consists of 2000 hexagonal ommatidia.

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Similar questions

Q. How many of the given statements are true?

A) In a cockroach, the brain is represented by a supra-oesophageal ganglion that supplies nerves to the maxillary and labial palps.
B) The compound eyes are situated at the ventral surface of the head.
C) Each compound eye consists of 200 hexagonal ommatidia.

Consider the following four statements regarding the nervous system of a cockroach and choose the correct option indicating as true (T) or false (F) respectively.

1. The Brain of a cockroach is primitive and is made of 2 supra-oesophageal and 1 sub-oesophageal ganglia, connected by 2 circum-oesophageal connectives.

2. It has 3 thoracic and 6 abdominal, segmental ganglia.

3. All the Sensory organs are under the control of the brain directly.

4. Receptors are of tactile, chemo and photo sensory in nature

Q. The plate situated between the eyes and passing below that on the head of cockroach is called as

Q. The component units of compound eye of Cockroach are called

Q. The unit of photo reception, in a compound eye of cockroach and other insects, is

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The Nervous System of Cockroach

Standard XII Biology

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The correct option is A OneThe supra-oesophageal ganglion, present in the head region of a cockroach, supplies nerves to the antennae and compound eyes. The compound eyes are located at the dorsal surface of the head and each of the eyes consists of 2000 hexagonal ommatidia.

The correct option is A One
The supra-oesophageal ganglion, present in the head region of a cockroach, supplies nerves to the antennae and compound eyes. The compound eyes are located at the dorsal surface of the head and each of the eyes consists of 2000 hexagonal ommatidia.