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प्रश्न
Choose the correct alternative.
Cockroach shows which kind of circulatory system?
विकल्प
Open
Closed
Lymphatic
Double
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उत्तर
Open
APPEARS IN
संबंधित प्रश्न
Choose the correct alternative.
The muscular structure that separates the thoracic and abdominal cavity is _______.
Choose the correct alternative.
Which of the following animals do not have closed circulation?
Choose the correct alternative.
Diapedesis is performed by ______.
Choose the correct alternative.
Diapedesis can be seen in _________ cell.
Opening of inferior vena cava is guarded by _______.
Match the Respiratory surface to the organism in which it is found.
| Respiratory surface | Organism |
| Plasma membrane | Insect |
| Lungs | Salamander |
| External gills | Bird |
| Internal gills | Amoeba |
| Trachea | Fish |
Very short answer question.
Why is respiration in insect called direct respiration?
Short answer question.
Identify the incorrect statement and correct it,
a. A respiratory surface area should have a large surface area.
b. A respiratory surface area should be kept dry.
c. A respiratory surface area should be thin, maybe 1mm or less.
With the help of chart identify and write the function of any four leucocytes.
| Type | Leucocytes | Name of cell | Function |
| Granulocytes |  |
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 |
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 |
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| Agranulocytes |  |
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Which of the following respiratory organ is used by aquatic arthropods for respiration?
