Xanthophylls are the primary pigment used in photosynthesis.

True
or
False

Which of the following is not a potential result of deforestation?

Hemoglobin is a proton that carries oxygen around your body what is hemoglobin made from

Veins have a much lower blood pressure than arteries. which of these prevents backflow of blood in veins? a. pressure applied by the heart b. one–way valves in veins c. thin muscular walls of veins