After having lunch or dinner one can feel to pass urine, because of a ( )
A. stomach pressures on bladder

B. solids become liquids

C. water content in food material

D. sphincter relaxation

Fill in the blanks

Gums and resins are the ____________products of the plants.

Fill in the blanks

Rubber is produced from ___________ of Heave Brasiliense’s.

Write differences (AS1)

Excretion and secretion

The organ ‘A’ of a person has been damaged completely due to a poisonous waste material ‘B’ has started accumulation in his blood, making it dirty. In order to save this person’s life, the blood from an artery in the person’s arm is made to flow into long tubes made of substance ‘E’ which are kept in coiled form in a tank containing solution ‘F’. This solution contains three materials ‘G’, ‘H’ and ‘I’ similar proportions to those in normal blood. As the person’s blood passes through long tubes of substance ‘E’, most if the wastes present in it go into solution ‘F’. The clean blood is then put back into a vein in the person for circulation. (AS1)

A. What is organ A?

B. Name the waste substance B.

C. What are (i) E, and (ii) F?

D. What is the process described above known as?

To keep your kidneys healthy for long period what questions will you ask a nephrologists/ urologist? (AS2)

How plants manage the waste materials? (AS1)

Special excretory organs are absent in ( )

Fill in the blanks

The alkaloid used for malaria treatment is ___________________.

Malpighian tubes are excretory organs in ( )

Imagine what happens if waste materials are not sent out of the body from time to time? (AS2)