Answer the following question given this paragraph: The radiation exposure is determined by the number of rads times the quality factor of the radiation. Q: The radiation exposure is determined by the number of what times the quality factor of the radiation? Choices: - pounds - units - beacons - rads A:
rads
(Question)
Answer the following question given this paragraph: Another barrier is the saliva in the mouth, which is rich in lysozymean enzyme that destroys bacteria by digesting their cell walls. The acidic environment of the stomach, which is fatal to many pathogens, is also a barrier. Additionally, the mucus layer of the gastrointestinal tract, respiratory tract, reproductive tract, eyes, ears, and nose traps both microbes and debris, and facilitates their removal. In the case of the upper respiratory tract, ciliated epithelial cells move potentially contaminated mucus upwards to the mouth, where it is then swallowed into the digestive tract, ending up in the harsh acidic environment of the stomach. Considering how often you breathe compared to how often you eat or perform other activities that expose you to pathogens, it is not surprising that multiple barrier mechanisms have evolved to work in concert to protect this vital area. Q: How does lysozyme destroy bacteria? Choices: - by antibiotic use - by eating them - by paralyzing them - by digesting their cell walls A:
(Answer)
by digesting their cell walls
Ques: Answer the following question given this paragraph: Prokaryotes are currently placed in two domains. A domain is the highest taxon in the classification of living things. It's even higher than the kingdom. Q: What is the highest taxon in the classification of living things? Choices: - a phylum - a class - a family - a domain A:
Ans: a domain
(Q).
Answer the following question given this paragraph: The smallest cyclic ether is called an epoxide. Draw its structure. Q: The smallest cyclic ether is called what? Choices: - aldehyde - quark - peroxidase - epoxide A:
(A).
epoxide
Ques:Answer the following question given this paragraph: Muscles work together in pairs to bend or straighten the joint. Q: What work together in pairs to bend or straighten a joint? Choices: - nerve fibers - collagen bands - cartilage tissues - muscles A:

Ans:muscles
Ques: Answer the following question given this paragraph: Nitrogen is another common element found in living things. It is needed to form both proteins and nucleic acids such as DNA. Nitrogen gas makes up 78 percent of Earth's atmosphere. In the nitrogen cycle, nitrogen flows back and forth between the atmosphere and living things. You can see how it happens in Figure below . Several different types of bacteria play major roles in the cycle. Q: What gas comprises about three-fourths of earth's atmosphere? Choices: - hydrogen - carbon dioxide - oxygen - nitrogen A:
Ans:
nitrogen