Answer the following question given this paragraph: Blood flows in only one direction in the heart. Blood enters the atria, which contract and push blood into the ventricles. The atria relax and the ventricles fill with blood. Finally, the ventricles contract and push blood around the body. Q: Blood enters the heart in what valve? Choices: - tricuspid - aortic - mitral - atria A:
atria
(Question)
Answer the following question given this paragraph: Figure 5.12 Light energy is absorbed by a chlorophyll molecule and is passed along a pathway to other chlorophyll molecules. The energy culminates in a molecule of chlorophyll found in the reaction center. The energy "excites" one of its electrons enough to leave the molecule and be transferred to a nearby primary electron acceptor. A molecule of water splits to release an electron, which is needed to replace the one donated. Oxygen and hydrogen ions are also formed from the splitting of water. Q: Light energy is absorbed by which kind of molecule? Choices: - inorganic - parasite - nutrient - chlorophyll A:
(Answer)
chlorophyll
Ques: Answer the following question given this paragraph: Secondary growth of sweet potato roots provides more space to store food. Roots store sugar from photosynthesis as starch. What other starchy roots do people eat?. Q: What part of the sweet potato store sugar from photosynthesis as starch? Choices: - plants - skin - shrubs - roots A:
Ans: roots
(Q).
Answer the following question given this paragraph: The vapor pressure of a solution is lower than that of the pure solvent at the same temperature. This decrease in vapor pressure is one example of a colligative property . Colligative properties are properties of solutions that depend only on the concentration of dissolved particles and not on their identity. Q: What are the properties of solutions called that depend only on the concentration of dissolved particles and not on their identity? Choices: - platyhelminth properties - platyhelminth properties - platyhelminth properties - colligative properties A:
(A).
colligative properties
Ques:Answer the following question given this paragraph: Darwin coined the term fitness to refer to an organism's relative ability to survive and produce fertile offspring. Nature selects the variations that are most useful. Therefore, he called this type of selection natural selection. Q: Darwin coined what term to refer to an organism's relative ability to survive and produce fertile offspring? Choices: - momentum - metabolism - strength - fitness A:

Ans:fitness
Ques:Answer the following question given this paragraph: Vascular shock occurs when arterioles lose their normal muscular tone and dilate dramatically. It may arise from a variety of causes, and treatments almost always involve fluid replacement and medications, called inotropic or pressor agents, which restore tone to the muscles of the vessels. In addition, eliminating or at least alleviating the underlying cause of the condition is required. This might include antibiotics and antihistamines, or select steroids, which may aid in the repair of nerve damage. A common cause is sepsis (or septicemia), also called "blood poisoning," which is a widespread bacterial infection that results in an organismal-level inflammatory response known as septic shock. Neurogenic shock is a form of vascular shock that occurs with cranial or spinal injuries that damage the cardiovascular centers in the medulla oblongata or the nervous fibers originating from this region. Anaphylactic shock is a severe allergic response that causes the widespread release of histamines, triggering vasodilation throughout the body. Obstructive shock, as the name would suggest, occurs when a significant portion of the vascular system is blocked. It is not always recognized as a distinct condition and may be grouped with cardiogenic shock, including pulmonary embolism and cardiac tamponade. Treatments depend upon the underlying cause and, in addition to administering fluids intravenously, often include the administration of anticoagulants, removal of fluid from the pericardial cavity, or air from the thoracic cavity, and surgery as required. The most common cause is a pulmonary embolism, a clot that lodges in the pulmonary vessels and interrupts blood flow. Other causes include stenosis of the aortic valve; cardiac tamponade, in which excess fluid in the pericardial cavity interferes with the ability of the heart to fully relax and fill with blood (resulting in decreased preload); and a pneumothorax, in which an excessive amount of air is present in the thoracic cavity, outside of the lungs, which... Q: What occurs when arterioles lose their normal muscular tone and dilate dramatically? Choices: - cardio shock - respiration shock - congenital shock - vascular shock A:

Ans:
vascular shock