(a) Define excretion.
(b) Name the basic filtration unit present in the kidney.
(c) Draw excretory system in human beings and label the following organs of excretory system which perform following functions:
(i) form urine
(ii) is a long tube which collects urine from kidney
(iii) store urine until it is passed out
List in tabular form three distinguishing features between autotrophic nutrition and heterotrophic nutrition.Read More
Write the mechanism by which fishes breath in water.Read More
Name the balloon likes structures present in lungs. List its two functions.Read More
Name the respiratory pigment and write its role in human beings.Read More
Explain the ways in which glucose is broken down in absence of oxygen.Read More
(a) Name the process and explain the type of nutrition found in green plants. List the raw materials required for this process. Give chemical equation for the mentioned process.
(b) Write three events that occur during this process.Read More
(a) Mention any two components of blood.
(b) Trace the movement of oxygenated blood in the body.
(c) Write the function of valves present in between atria and ventricles.
(d) Write one structural difference between the composition of artery and veins.Read More