Which match is true?
Vitamin deficiency disease | Vitamin | Source |
Severe bleeding | Tocopherol | Milk, egg |
Anaemia | Ascorbic acid | Lemon, orange |
Night blindness | Retinol | Carrot, milk |
Sterility | Calciferol | Milk, butter |
Which of the following does not come under the Class Mammals?
Flying fox
Hedgehog
Manatee
Lamprey
D.
Lamprey
Lamprey (or Petromyzon) belongs to class cyclostomata. The lamprey has about 1m long greenish brown, cylindrical body with smooth, scaleless, slimy skin; anterior circular, jawless mouth; a single dorsal naris; seven pairs of circular gill slits; 2 dorsal tins and a tail tin. It's life cycle includes two quite different phases. The larval phase (called ammocoete) is a fresh water sedentary, filter feeding and microphagus creature reminiscent of the lancet. The fish like adult lives in the sea and is parasitic on fishes.
The black pigment in the eye which reduces the internal reflection is located in
retina
iris
cornea
sclerotic
Which of the following match is correct?
Hormone | Effect |
Oxytocin | Milk ejection hormone |
Glucagon | Decreases blood sugar level |
Adrenaline | Decreases heart rate |
Thyroxine | Decreases BMR |
Which of the following statements regarding glucagon is false?
It is secreted by -cells of Langerhans
It acts antagonistically to insulin
It decreases blood sugar level
The gland responsible for its secretion is heterocrine gland.
Hearing impairment affects which part of brain?
Frontal lobe
Parietal lobe
Temporal lobe
Cerebellum
The component of blood which prevents its coagulation in the blood vessels is
Haemoglobin
Plasma
Thrombin
Heparin