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Earthworm is the ideal example of tubular excretory system called
Protonephridia
Prenephridia
Mesonephridia
Metanephridia
When the human blood leaves the capillary bed of the tissue, most of the carbon dioxide is inthe form of:
Bicarbonate ions
None of them
Carboxylic acids
Carbonic acid
For evaporative cooling bats use
Saliva
All a,b,andc
Sweat
Urine
About 500 ml water is needed to excrete 1g of ammonia
Oxygen
Hydrogen
Nitrogen
Helium
Which plants have the adaptation to remove the flooding of its cells in fresh water
Chondrocytes
Xerophytes
Mesophytes
Hydrophytes
The wall of trachea(windpipe) and bronchi of man is fernished with a series of incomplete:
Cartilaginous rings
Chitinous rings
Cartilagenous plates
Muscular rings
Which part of the air passage way possesses chartilage plates in its wall?
Distal religion of bronchi
Phroximal region of bronchi
Trachea
Bronchiles
Mammalian kidney including human is adapted to conserve water by over
50%
20.50%
99.50%
70%
The primary structure for eliminating waste products in man are
Stomach
Both a & b
Liver
Kidneys
A pair of kidneys consists of millons of functional units called
Flatirons
Nephrons
Dendrons
Neurons
Dialysis cleans the blood either by
Passing it through an artificial kidney
Removing the whole blood from body
Both a&b
Filtering it within abdomen
Bowman capsule continues as extensively convoluted proximal tubule loop of henie and the distal tubule which empties into
Renal tubules
Neural tubules
Collecting tubules
Malpighian tubules
Dialyses means
Storing the blood
Cleaning the blood
Diluting the blood
Removing the blood
Fresh water flatworms excrete very dilute
Tissue fluid
Fluid
Urine
Plasma
When haemoglobin of the blood is fully saturated with oxygen, the 100cc of blood comains
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