Red blood cells contain haemoglobin which provide red colour to the blood.
The lymphatic system is a network of tissues and organs that help rid the body of toxins, waste and other unwanted materials.
Closed circulation, the blood is pumped through the vessels separate from the interstitial fluid of the body.
RBC's have hemoglobin in them, an iron-containing protein, which helps in oxygen transport.
Lymphoid system, is an organ system in vertebrates that is part of the circulatory system.
Open circulatory systems are systems where blood, rather than being sealed tight in arteries and veins, suffuses the body and may be directly open to the environment.
Circulatory system delivers oxygen and nutrients to cells and takes away wastes. The heart pumps oxygenated and deoxygenated blood on different sides.
Worksheets for ICSE class 8 biology
Support Services for ICSE class 8 biology
Regular Classes for ICSE class 8 biology