339244 Double circulation is found in

339245 Statement A :
Open circulatory system is present in annelids and chordates in which blood pumped by the heart passes through large vessels into open spaces called sinuses.
Statement B :
Closed circulatory system is present in arthropods and molluscs in which the blood pumped by the heart is always circulated through a closed network of blood vessels.

339246 Statement A :
In fishes, the gills pump out deoxygenated blood which is oxygenated by the heart and supplied to the body parts from where deoxygenated blood is returned to gills.
Statement B :
In incomplete double circulation, the left atrium receives oxygenated blood from gills or lungs and right atrium gets the deoxygenated blood from the other body parts. They get mixed up in the single ventricle.

339244 Double circulation is found in

339245 Statement A :
Open circulatory system is present in annelids and chordates in which blood pumped by the heart passes through large vessels into open spaces called sinuses.
Statement B :
Closed circulatory system is present in arthropods and molluscs in which the blood pumped by the heart is always circulated through a closed network of blood vessels.

339246 Statement A :
In fishes, the gills pump out deoxygenated blood which is oxygenated by the heart and supplied to the body parts from where deoxygenated blood is returned to gills.
Statement B :
In incomplete double circulation, the left atrium receives oxygenated blood from gills or lungs and right atrium gets the deoxygenated blood from the other body parts. They get mixed up in the single ventricle.

339244 Double circulation is found in

339245 Statement A :
Open circulatory system is present in annelids and chordates in which blood pumped by the heart passes through large vessels into open spaces called sinuses.
Statement B :
Closed circulatory system is present in arthropods and molluscs in which the blood pumped by the heart is always circulated through a closed network of blood vessels.

339246 Statement A :
In fishes, the gills pump out deoxygenated blood which is oxygenated by the heart and supplied to the body parts from where deoxygenated blood is returned to gills.
Statement B :
In incomplete double circulation, the left atrium receives oxygenated blood from gills or lungs and right atrium gets the deoxygenated blood from the other body parts. They get mixed up in the single ventricle.