Q: What is a sheet of muscle that spreads across the bottom of the rib cage? Read this paragraph and choose the correct option from the provided answers: The diaphragm is a sheet of muscle that spreads across the bottom of the rib cage. When the diaphragm contracts, the chest volume gets larger, and the lungs take in air. When the diaphragm relaxes, the chest volume gets smaller, and air is pushed out of the lungs. Choices: - cartilage - thorax - diagram - diaphragm A:
diaphragm

(Question)
Q: How many main types of diabetes are there? Read this paragraph and choose the correct option from the provided answers: There are two main types of diabetes, type 1 diabetes and type 2 diabetes. Type 1 diabetes makes up about 5-10% of all cases of diabetes in the United States. Type 2 diabetes accounts for most of the other cases. Both types of diabetes are more likely in people that have certain genes. Having a family member with diabetes increases the risk of developing the disease. Choices: - three - one - six - two A:
(Answer)
two

Ques: Q: Which state of matter is not common on earth? Read this paragraph and choose the correct option from the provided answers: States of matter are different phases in which any given type of matter can exist. There are four well-known states of mattersolid, liquid, gas, and plasmabut only the first three states are common on Earth. Choices: - respiration - liquid - gas - plasma A:
Ans: plasma

(Q).
Q: The anatomical arrangement of capillaries and alveoli emphasizes the structural and functional relationship of what systems? Read this paragraph and choose the correct option from the provided answers: are attached to the end of each bronchiole. At the end of each duct are approximately 100 alveolar sacs, each containing 20 to 30 alveoli that are 200 to 300 microns in diameter. Gas exchange occurs only in alveoli. Alveoli are made of thin-walled parenchymal cells, typically one-cell thick, that look like tiny bubbles within the sacs. Alveoli are in direct contact with capillaries (one-cell thick) of the circulatory system. Such intimate contact ensures that oxygen will diffuse from alveoli into the blood and be distributed to the cells of the body. In addition, the carbon dioxide that was produced by cells as a waste product will diffuse from the blood into alveoli to be exhaled. The anatomical arrangement of capillaries and alveoli emphasizes the structural and functional relationship of the respiratory and circulatory systems. Because there are so many alveoli (~300 million per lung) within each alveolar sac and so many sacs at the end of each alveolar duct, the lungs have a sponge-like consistency. This organization produces a very large surface area that is available for gas exchange. The surface area of alveoli in the lungs is approximately 75 m2. This large surface area, combined with the thin-walled nature of the alveolar parenchymal cells, allows gases to easily diffuse across the cells. Choices: - nervous and lymphatic - digestive and respiratory - endocrine and renal - respiratory and circulatory A:
(A).
respiratory and circulatory

Ques:Q: Which direction from the source do pollutants in an aquifer spread? Read this paragraph and choose the correct option from the provided answers: Pollutants that enter an aquifer spread outward from the source. They spread in the direction the water is moving. Choices: - southward - forward - inward - outward A:

Ans:outward

Q: How many nonpolar bonds does an oxygen molecule have? Read this paragraph and choose the correct option from the provided answers: An oxygen molecule has two nonpolar bonds. This is called a double bond. The two oxygen atoms attract equally the four shared electrons. Choices: - 5 - 7 - 3 - 2 A:
2