The xylem in plants are responsible for
(a) transport of water
(b) transport of food.
(c) transport of amino acids.
(d) transport of oxygen
In plants Xylem is responsible for transport of water hence the answer is a)
Enzymes secreted in small intestine.
Compare the functioning of alveoli in the lungs and nephrons in the kidneys with respect to their structure and functioning.
What are the differences between the transport of materials in xylem and phloem?
Describe double circulation of blood in human beings. Why is it necessary?
What would be the consequences of a deficiency of haemoglobin in our bodies?