The movement of organic materials (food) takes place through
What regulates the flow of water through the xylem?
Phloem transport of sucrose can be described as going from "source to sink" which of the following would not normally function as a sink?
Human plasma proteins include which of the following?
(I) Fibrinogen
(II) Haemoglobin
(III) Albumin
Which of these are involved in the clotting of blood?
In the human heart, blood returning from the lungs first drains into the
Root hairs are most important to a plant because they
A type of circulatory system where blood flows through the spaces among tissues called
(I) Open type circulatory system
(II) Close type circulatory system
(III) Pulmonary circulatory system
Part of the root between epidermis and endodermis called
Movement of water molecules from the area of higher water potential to the area of lower water potential called