Multiple Choice Questions

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If frog's brain is crushed, even then its leg moves on pinpointing. It is called

  • simple reflex

  • conditional reflex

  • neurotransmitter function

  • autonomic nerve condition


A.

simple reflex

If frog's brain is crushed even then its leg moves on pinpointng, is an example of simple reflex. It occurs without the involvement of brain. Simple reflex is controlled by spinal cord only.


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Gemmule formation in sponges are useful in

  • asexual reproduction

  • sexual reproduction

  • parthenogenesis

  • parthenocarpy


Brunner's glands are present in

  • duodenum

  • oesophagus

  • ileum

  • stomach


Which of the following is made up of a single bone in mammals?

  • Dentary

  • Hyoid

  • Upper jaw

  • All of these


Fifth cranial nerve of frog is called

  • vagus

  • trigeminal

  • optic

  • ophthalmic


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Which of the following is not a mental disorder?

  • Epilepsy

  • Neurosis

  • Psychosis

  • Plague


Sella turcica is found

  • near pituitary

  • in bones

  • in joints

  • near thyroid


Systemic heart refers to

  • entire heart in lower vertebrates

  • the two ventricles together in humans

  • the heart that contracts under stimulation from nervous system

  • left auricle and left ventricle in higher vertebrates


Spindle fibres of mitotic cell are made up of

  • tubulin

  • actin

  • myosin

  • collagen


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Acromegaly is due to hypersecretion of

  • insulin

  • thyroxine

  • growth hormone

  • None of these