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Assertion : The neural organisation is v...

Assertion : The neural organisation is very simple in lower invertebrates.
Reason : The vertebrates have a more developed neural system.

A

If both assertion and reason are true and the reason is the correct explanation of the assertion.

B

If both assertion and reason are true but reason is not the correct explanation of the assertion.

C

If assertion is true but reason is false.

D

If both assertion and reason are false.

Text Solution

Verified by Experts

The correct Answer is:
B
The neural organisation is very simple in lower invertebrates.
The vertebrates have a more developed neural system.
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Read the following statements :- (a) Nervous system provides an organised network of point to point connection. (b) The endocrine system provides chemical integration through hormone. (c) The neural organisation is very complex in lower invertebrates. (d) Neuron can detect & receive stimuli but can't transmit. How many of above statements are false.

Which of the following is not correctly correlate with neural system? i. The neural system of all animals is composed of highly specialised cells called neurous which can detect receive and transmit different kinds of stimuli ii. The neural organisation is very simple is lower invertebrates iii. Neural system of Hydra is composed of a network of neurons. iv. The neural system is better organised in insects, where a brain is present along with a number of ganglia and neural tissues V. The vertebrates have a more developed neural system . vi. Neural system of earthworm is composed of a network of neurons

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Assertion : Amphioxus has a simple organization compared to vertebrates. Reason : Many important craniate structure are lacking in Amphioxus.

Assertion : Morphine is very effective and sedative painkiller. Reason : It is very useful for the patients who have depression.

A2Z-NEURAL CONTROL AND COORDINATION-Section B : Assertion-reasoning Questions
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  2. Assertion : In the human eye, there are three types of rods which poss...

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  3. Assertion : A neuron is a microscopic structure composed of three majo...

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  4. Assertion : The neural organisation is very simple in lower invertebra...

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  5. Assertion : Neurons are excitable cells. Reason : The membrane of th...

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  6. Assertion : When a neuron is not conducting any impulse, i.e. resting,...

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  7. Assertion : Myelinated nerve fibre are enveloped with Schwan cells, wh...

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  8. Assertion : The function of muscles, lungs, heart, blood vessels, kidn...

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  9. Assertion : The neural system provides an organised network of point-t...

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  10. Assertion : The cerebral cortex is referred to as the grey matter due ...

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  11. Assertion : Aqueous humor is a transparent get like fluid. Reason : ...

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  12. Assertion : Cerebellum has very convoluted surface in order to provide...

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  13. Assertion : The inner part of cerebral hemisphere is called white matt...

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  14. Assertion : The base of semi-circular canal is swollen and is called c...

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  15. Assertion : In the human eye, there are three types of rods which poss...

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  16. Assertion : A neuron is a microscopic structure composed of three majo...

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  17. Assertion : The neural organisation is very simple in lower invertebra...

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  18. Assertion : Neurons are excitable cells. Reason : The membrane of th...

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  19. Assertion : When a neuron is not conducting any impulse, i.e. resting,...

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  20. Assertion : Myelinated nerve fibre are enveloped with Schwan cells, wh...

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