In this leaf venation, the veins do not cross each other.
What is parallel?
In plants, this provides food to cells that don't make their own food.
What is sap?
This is carried to the cells when blood circulates through the human body.
What is oxygen?
Part 1 of the circulatory system.
What are the lungs?
In this leaf venation, there is a central vein running up the leaf with other veins branching off the central vein.
What is pinnate?
Sap travels along these lines in the diagram.
What is red?
This is carried away from cells when blood circulates through the human body.
What is carbon dioxide?

Part 2 of the circulatory system.
What is the heart?

In this leaf venation, the veins branch off from the base of the leaf from the stem.
What is palmate?
Water and nutrients travel along these lines in the diagram.
What is black?
These cells carry nutrients and carry the gases to be exchanged in the lungs.
What are red blood cells?

Part 3 of the circulatory system.
What is an artery?
These tubes carried the water to make the leaves and stem of the celery red.
What are xylem tubes?
These tubes in plants transport materials in one direction only.
What are xylem tubes?
These cells attack viruses, bacteria, or any foreign matter in the blood.
What are white blood cells?

Part 4 of the circulatory system.
What is a vein?
This is the process by which extra water evaporates from tiny holes in the leaves.
What is transpiration?
These tubes in plants transport materials to every part of the plant.
What are phloem tubes?
This can be A, B, O, or AB.
What is blood type?
Part 5 of the circulatory system.
What are capillaries?