*Question*
Q: What is the respiratory pigment of almost every vertebrate? Choices: - insulin - plasma - iron - hemoglobin A:
**Answer**
hemoglobin

*Question*
Q: At the anode, liquid chloride ions are oxidized to what? Choices: - elemental gas - nitrogen gas - Heavy Gas - chlorine gas A:
**Answer**
chlorine gas

*Question*
Q: Lymph vessels, like veins, have what objects that prevent the backflow of fluid? Choices: - pumps - pores - fibers - valves A:
**Answer**
valves

*Question*
Q: What is the diffusion of water known as? Choices: - evaporation - electrolysis - hemostasis - osmosis A:
**Answer**
osmosis