In cockroach, brain is represented by

1. Supra-oesophageal ganglia
2. Sub-oesophageal ganglia
3. Circumpharyngeal nerve ring
4. Supra-pharyngeal ganglion
Subtopic:  Cockroach: Nervous System |
 94%
Level 1: 80%+
Please attempt this question first.
Hints
Please attempt this question first.

If the head of the cockroach is cut off, it will:

1. still live as long as one week
2. still live as long as one month
3. regenerate its head completely
4. regenerate its head but not eyes
Subtopic:  Cockroach: Nervous System |
 93%
Level 1: 80%+
Hints

 Nerves from supra- oesophageal ganglion in cockroach innervates A__________ and B ____________ . 
Choose the option which correctly fill the blanks A and B 
A B
1. Antennae Compound eyes 
2. Labrum Labium 
3. Antennae Labium 
4. Compound eyes  Mandibles 
Subtopic:  Cockroach: Nervous System |
 92%
Level 1: 80%+
Please attempt this question first.
Hints
Please attempt this question first.

advertisementadvertisement

Consider the given two statements:
Assertion (A): If the head of a cockroach is cut off, it will still live for as long as one week.
Reason (R): The head holds a bit of a nervous system while the rest is situated along the ventral (belly-side) part of its body.
 
1. Both (A) and (R) are True and (R) correctly explains (A)
2. Both (A) and (R) are True but (R) does not correctly explain (A)
3. (A) is True but (R) is False
4. Both (A) and (R) are False
Subtopic:  Cockroach: Nervous System |
 93%
Level 1: 80%+
Please attempt this question first.
Hints
Please attempt this question first.