Question

Match the animals listed below with their nature of blood. Choose the answer which gives the correct combination of alphabets of the two columns.

Animals	Nature of blood
A. Man	(p) Plasma and cells are colourless
B. Earthworm	(q) Plasms is colourless and nucleated
C. Cockroach	(r) Plasma is colourless and enucleated RBC
D. Frog	(s) Plasma is red and nucleated, colourless RBC
	(t) Plasma and RBC have haemoglobin

• A. A- p, B- s, C- q, D- r
• B. A- t, B- r, C- p, D- s
• C. A- r, B- s, C- p, D- q
• D. A- s, B- t, C- r, D- q

Answer 1

The correct option is C A- r, B- s, C- p, D- q

blood is the bodily fluid that is responsible to carry nutrients and oxygen to the body cells and transports the metabolic waste materials from these. It contains antibodies, nutrients and oxygen. However, the nature of blood is different in different organisms. In human beings, 55% of blood is plasma which is made up of 92% water and 7% proteins and salts and carry RBC's WBC's and Platelets. The RBC's are without nuclei. In the earthworm the blood consists of ameboid cells and hemoglobin dissolved in the plasma. Cockroaches lack heamoglobin in their blood. are thus white. Like all amphibians frogs have red blood cells with a distinct nucleus.