Answer the following question given this paragraph: Blood from the body enters the right atrium of the heart. The right atrium pumps the blood to the right ventricle, which pumps it to the lungs. This loop is represented by the blue arrows in Figure above . Q: Blood from the body enters what chamber of the heart before it is pumped to the right ventricle and then to the lungs? Choices: - left ventricle - left bivalve - left atrium - right atrium A:
right atrium
(Question)
Answer the following question given this paragraph: Figure 46.15 Carbon dioxide gas exists in the atmosphere and is dissolved in water. Photosynthesis converts carbon dioxide gas to organic carbon, and respiration cycles the organic carbon back into carbon dioxide gas. Long-term storage of organic carbon occurs when matter from living organisms is buried deep underground and becomes fossilized. Volcanic activity and, more recently, human emissions, bring this stored carbon back into the carbon cycle. (credit: modification of work by John M. Evans and Howard Perlman, USGS). Q: Respiration cycles the organic carbon into which gas? Choices: - liquid dioxide - phosphorus dioxide - oxygen - carbon dioxide A:
(Answer)
carbon dioxide
Ques: Answer the following question given this paragraph: Infectious diseases are diseases that spread from person to person. They are caused by pathogens such as bacteria, viruses or fungi. What can you do to avoid infectious diseases? Eating right and getting plenty of sleep are a good start. These habits will help keep your immune system healthy. With a healthy immune system, you will be able to fight off many pathogens. The next best way is to avoid pathogens. Though this is difficult, there are steps you can take to limit your exposure to pathogens. Q: What system is responsible for defending your body against sickness? Choices: - nervous system - circulatory system - digestion system - immune system A:
Ans: immune system
(Q).
Answer the following question given this paragraph: Q: What part of the plant has a root end and a shoot end? Choices: - radius - leaves - pistol - axis A:
(A).
axis
Ques:Answer the following question given this paragraph: The atmosphere protects living things from the Sun's most harmful rays. Gases reflect or absorb the strongest rays of sunlight. Figure below models this role of the atmosphere. Q: What is the name of the protective layer of gases that surrounds the earth and blocks harmful rays from the sun? Choices: - the corona - the protector - the coma - the atmosphere A:

Ans:the atmosphere
Answer the following question given this paragraph: Solutions of Liquids in Liquids We know that some liquids mix with each other in all proportions; in other words, they have infinite mutual solubility and are said to be miscible. Ethanol, sulfuric acid, and ethylene glycol (popular for use as antifreeze, pictured in Figure 11.14) are examples of liquids that are completely miscible with water. Two-cycle motor oil is miscible with gasoline. Q: Liquids that mix with each other in all proportions are said to be miscible, maning they have infinite mutual what? Choices: - viscosity - insolubility - salinity - solubility A:
solubility