Answer the following question given this paragraph: Arterial Supply The major artery carrying recently oxygenated blood away from the heart is the aorta. The very first branches off the aorta supply the heart with nutrients and oxygen. The next branches give rise to the common carotid arteries, which further branch into the internal carotid arteries. The external carotid arteries supply blood to the tissues on the surface of the cranium. The bases of the common carotids contain stretch receptors that immediately respond to the drop in blood pressure upon standing. The orthostatic reflex is a reaction to this change in body position, so that blood pressure is maintained against the increasing effect of gravity (orthostatic means "standing up"). Heart rate increasesa reflex of the sympathetic division of the autonomic nervous systemand this raises blood pressure. Q: What do we call the major artery carrying recently oxygenated blood away from the heart? Choices: - capillary - muscular artery - arteriole - aorta A:
aorta
Answer the following question given this paragraph: Acids are molecular compounds that dissolve in water to produce hydronium ions and an anion. Q: Acids are molecular compounds that dissolve in water to produce hydronium ions and what else? Choices: - a neutron - a proton - an alkali - an anion A:
an anion
Q: Answer the following question given this paragraph: Q: How does water from roots reach the leaves? Choices: - water - combining cells - water - raising cells - water-phobic cells - water-conducting cells A:
A: water-conducting cells
Question: Answer the following question given this paragraph: Summary Superconductors are solids that at low temperatures exhibit zero resistance to the flow of electrical current, a phenomenon known as superconductivity. The temperature at which the electrical resistance of a substance drops to zero is itssuperconducting transition temperature (Tc). Superconductors also expel a magnetic field from their interior, a phenomenon known as the Meissner effect. Superconductivity can be explained by the BCS theory, which says that electrons are able to travel through a solid with no resistance because they couple to form pairs of electrons (Cooper pairs). Hightemperature superconductors haveTc values greater than 30 K. Q: Superconductors expel a magnetic field from their interior. what is this phenomenon known as? Choices: - weissenberg effect - eibner effect - lauer effect - meissner effect A:
Answer: meissner effect
*Question*
Answer the following question given this paragraph: The thermosphere is the layer above the mesosphere. Temperature increases with altitude in this layer. The northern and southern lights occur here. Q: In which sphere of the atmosphere do the northern and southern lights occur? Choices: - lithosphere - stratosphere - ionosphere - thermosphere A:
**Answer**
thermosphere
*Question*
Answer the following question given this paragraph: Q: What do ranchers fear will happen if wolves return? Choices: - loss of environment - human predation - vegetation predation - livestock predation A:
**Answer**
livestock predation