Vitamin-B₁₂ is absorbed primarily in the

• Stomach

• Duodenum

• Jejunum

• ileum

Which of the following act as an antigen, but do not induce antibody production?

• Haustra

• Histones

• Haptens

• None of these

If the threshold for hearing increasing 1000 times, the hearing loss is

• 40 decibels

• 50 decibels

•  60 decibels

• None of these

The faster breathing in high fever is due to the

• Additional requirement of O₂ for the invader germs

• High temperature of the body

• Mental worry of a patient

• Loss of appetite

Parkinsonism is related with

• Brain

• Spinal Nerve

• Cranial Nerves

• All of these

Epiphyseal plates at the extremities of long bones help in

• Bone moulding

• Elongation of bone

• Bone formation

• Formation of Haversian Canal

Which hormone produces the calorigenic effect?

• Thyroxine

• FSH

• Insulin

• All of these

The strongest muscle in the human is

• Biceps

• Gluteus maximus

• Stapedius

• Masseter

Carotid labyrinth contains

• Olfactory receptors

• Baroreceptors

• Chemoreceptors

• Phonoreceptors

Which of the following animals possess non-elastic lungs with elastic air sacs connected to them?

• Reptiles

• Birds

• Amphibians

• Mammals