Question 1:
a) What do you mean by the term excretion?
b) Illustrate one method of excretion in the flowering plants.
Question 2:
a) Draw a large labeled diagram of a vertical section via a human kidney. Label the given parts of your diagram: cortex, medulla and pelvis.
b) Point out clearly on your diagram where re-absorption occurs.
c) Name the blood vessel which supplies blood to a kidney. From which blood vessel does the blood vessel referred to in above occur?
d) In which cavity of the body are the kidneys situated?
e) Name one substance, other than the water, excreted in the urine.
f) Write some feature of the kidney that points out that it is an exocrine gland