Answer the following question given this paragraph: 16.3 Circulatory and Respiratory Systems Animal respiratory systems are designed to facilitate gas exchange. In mammals, air is warmed and humidified in the nasal cavity. Air then travels down the pharynx and larynx, through the trachea, and into the lungs. In the lungs, air passes. Q: In mammals, air is warmed and humidified in what? Choices: - lungs - stomach - esophagus - nasal cavity A:
nasal cavity
(Question)
Answer the following question given this paragraph: The rare earth metals are a set of seventeen chemical elements (the lanthanide series plus scandium and yttrium) that have particular importance for a variety of industrial processes and are used frequently in modern technology. Despite their name, rare earth metals are actually relatively abundant in the earth's crust. However, the extraction of many of these metals is quite difficult and has made their supply somewhat limited. They are highly sought after for this reason. Figure below shows the rare earth metals. Q: What do you call the set of seventeen chemical elements possessing particular importance for a variety of industrial processes, used frequently in modern technology? Choices: - base chemicals - fossil fuel - reactive elements - rare earth metals A:
(Answer)
rare earth metals
Ques: Answer the following question given this paragraph: Linnaean Classification System: Classification of the Human Species. This chart shows the taxa of the Linnaean classification system. Each taxon is a subdivision of the taxon below it in the chart. For example, a species is a subdivision of a genus. The classification of humans is given in the chart as an example. Q: A species is a subdivision of a genus in what classification system? Choices: - calcareous system - mammalian - crocodilian system - linnaean system A:
Ans: linnaean system
(Q).
Answer the following question given this paragraph: Air enters the respiratory system through the nose. As the air passes through the nasal cavity, mucus and hairs trap any particles in the air. The air is also warmed and moistened so it won't harm delicate tissues of the lungs. Q: In the nasal cavity, what 2 things trap particles from incoming air? Choices: - phlegm and hair - saliva and hair - mucus and skin - mucus and hair A:
(A).
mucus and hair
Ques:Answer the following question given this paragraph: Some life scientists mainly do lab research. Other life scientists, like the botanist in Figure below , work in natural settings. This is called fieldwork . Whether in the lab or the field, research in life science can be dangerous. It's important to be aware of the risks and how to stay safe. Q: When scientists work in natural settings rather than a lab, it is called what? Choices: - outside work - extracurricular activity - exploratory - fieldwork A:

Ans:fieldwork
Ques:Answer the following question given this paragraph: Now the hydrogen atoms need to be balanced. In an acidic medium, add hydrogen ions to balance . In this example, fourteen H + ions will be added to the reactant side. Q: In an acidic medium, add which ions to balance? Choices: - helium - magnesium - calcium - hydrogen A:

Ans:
hydrogen