(i) The diagram of a heart showing all its chambers is shown below:

(ii) The table below shows the functions of different parts of the heart:

OR

• Plants absorb water from the soil with the help of root hair. These are thin unicellular structures which increase the surface area for absorption of water.

• The water absorbed by the roots, now, needs to be transported to the leaves. This is done through Xylem. Xylem is tube-like structure mainly responsible for the transportation of water and minerals. It is made up of four elements which are Vessels, Tracheids, Xylem Parenchyma and Xylem Fibres. But this pressure exerted by xylem is not enough for water to reach the top of the plant.

• So, another force is known as transpirational pull also acts along with the Xylem pressure. Transpiration is a loss of water by the plant by evaporation, chiefly from the minute pores or stomata on the leaves.