Answer the following question given this paragraph: Use a machine. The polymerase chain reaction has revolutionized biological and biomedical research and applications. Luckily many machines have been developed that allow this process to be performed rapidly and with precision. Q: What has has revolutionized biological and biomedical research and applications? Choices: - synthesis chain reaction - organism chain reaction - Compound chain reaction - polymerase chain reaction A:
polymerase chain reaction
(Question)
Answer the following question given this paragraph: Neural Regulation The nervous system plays a critical role in the regulation of vascular homeostasis. The primary regulatory sites include the cardiovascular centers in the brain that control both cardiac and vascular functions. In addition, more generalized neural responses from the limbic system and the autonomic nervous system are factors. Q: What system plays a critical role in the regulation of vascular homeostasis? Choices: - endocrine system - circulatory system - renal system - nervous system A:
(Answer)
nervous system
Ques: Answer the following question given this paragraph: Most substances may exist in any of the three common states of matter. In the gaseous state, the molecular motion has completely overcome any attraction between the particles and the particles are totally separate from each other. There are large spaces between the particles and they move large distances between collisions. In the liquid state, the molecular motion and the molecular attractions are more balanced. While the particles stay more or less in contact with each other, they are still free to move and can slide past one another easily. In the solid state, the attractive forces dominate. The particles are pulled together into a tightly packed pattern which does not allow the particles to pass each other. The molecular motion in this form is essentially reduced to vibration in place. Increasing the temperature of a substance means increasing the molecular motion (kinetic energy) of the molecules in the substance. The phase in which a substance exists is the result of a competition between attractive forces and molecular motion. Q: In which state of matter are particles completely separate from one another? Choices: - phosphorus state - solid state - liquid state - gaseous state A:
Ans: gaseous state
(Q).
Answer the following question given this paragraph: one of two female reproductive organs that produces eggs and secretes estrogen. Q: Organs that produce eggs and secrete estrogen are part of what system? Choices: - circulatory system - digestive system - male reproductive system - female reproductive system A:
(A).
female reproductive system
Ques:Answer the following question given this paragraph: Hookworms, such as Ancyclostoma and Necator, infest the intestines and feed on the blood of mammals, especially in dogs, cats, and humans. Trichina worms (Trichinella) are the causal organism of trichinosis in humans, often resulting from the consumption of undercooked pork; Trichinella can infect other mammalian hosts as well. Ascaris, a large intestinal roundworm, steals nutrition from its human host and may create physical blockage of the intestines. The filarial worms, such as Dirofilaria and Wuchereria, are commonly vectored by mosquitoes, which pass the infective agents among mammals through their blood-sucking activity. Dirofilaria immitis, a blood-infective parasite, is the notorious dog heartworm species. Wuchereria bancrofti infects the lymph nodes of humans, resulting in the non-lethal but deforming condition called elephantiasis, in which parts of the body become swelled to gigantic proportions due to obstruction of lymphatic drainage and inflammation of lymphatic tissues. Q: What part of the body do hookworms infest? Choices: - lungs - skin - brain - intestines A:

Ans:intestines
Ques: Answer the following question given this paragraph: If hot water becomes trapped, pressure may build up. When the water breaks free, it creates a geyser. Q: If hot water becomes trapped, pressure may build up. when the water breaks free, it creates what? Choices: - groundwater - steam - glacier - geyser A:
Ans:
geyser