Question

The human body has an organ ‘A’ which acts as a pump. The organ ‘A’
pumps a liquid ‘B’ into the whole body continuously. The liquid ‘B’
supplies the useful substances ‘C’ and ‘D’ along with water and minerals to
all the body cells. 2M
i) What is ‘A’?
ii) What is the colour of ‘B’?
iii) Name the useful substances ‘C’ and ‘D’.

Answer 1

Answer

i) A is HEART

ii) B is BLOOD

Answer 2

Answer:

I) A is heart

ii) The colour of B is red

iii) The useful substance C and D are oxygen and nutrients.

Explanation:

The organ A the heart acts as a pump and pumps liquid B ,which is red in colour due to the presence of haemoglobin , into the whole body continuously. Blood supplies useful substances C and D i.e) oxygen and nutrients along with water and minerals to all the body cells.