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प्रश्न
Differentiate between:
Open circulatory system and Closed circulatory system.
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उत्तर
| Open circulatory system | Closed circulatory system |
| Blood may flow in vessels but also remains in direct contact with tissues. | Blood flows in definite vessels known as arteries and veins. |
| Blood spaces or sinuses are present. | Blood spaces or sinuses are absent |
| Haemocoel is present. | Haemocoel is absent. |
| Found in insects, e.g., cockroach, housefly, etc. | Found in annelids and higher vertebrates. |
संबंधित प्रश्न
When are the sounds "LUBB" and "DUP" produced respectively during heart beat?
Differentiate between members of the following pairs with reference to the aspect asked within bracket:
artery and vein (type of blood primarily flowing through)
Give any three differences between an artery and a vein
True or false:
People with blood group ‘O’ are called universal recipients
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Leucocytes show amoeboid movement.
State the Location: Spleen
State the Location: Bicuspid value
Explain the main parts of the circulatory system.
The endocrine glands produce chemical substances called ____
The heart is covered by ______.
