Q: Osteoclasts break down bone to maintain mineral what? Read this paragraph and choose the correct option from the provided answers: Under the direction of osteocytes, osteoblasts continuously build up bone, while osteoclasts continuously break down bone to maintain mineral homeostasis. Bone tissues include compact bone, spongy bone, bone marrow, and periosteum. Choices: - density - fluctuations - polarity - homeostatis A:
homeostatis

(Question)
Q: What is the usual treatment for acute bronchitis? Read this paragraph and choose the correct option from the provided answers: Bronchitis is an inflammation of the bronchi, the air passages that conduct air into the lungs. The bronchi become red and swollen with infection. Acute bronchitis is usually caused by viruses or bacteria, and may last several days or weeks. It is characterized by a cough that produces phlegm, or mucus. Symptoms include shortness of breath and wheezing. Acute bronchitis is usually treated with antibiotics. Choices: - surgery - physical therapy - pesticides - antibiotics A:
(Answer)
antibiotics

Ques: Q: In what process is atp created by glycolysis, without oxygen? Read this paragraph and choose the correct option from the provided answers: Two different pathways accomplish the regeneration of NAD + with rather famous products: lactic acid (C 3 H 6 O 3 ) and ethyl alcohol (C 2 H 6 O) ( Figure above ). Making ATP in the absence of oxygen by glycolysis alone is known as fermentation . Therefore, these two pathways are called lactic acid fermentation and alcoholic fermentation . If you lack interest in organisms, such as yeast and bacteria, which have "stuck with" the anaerobic tradition, the products of these chemical reactions may still intrigue you. Fermentation makes bread, yogurt, beer, wine, and some new biofuels. In addition, some of your body's cells are facultative anaerobes, retaining one of these ancient pathways for short-term, emergency use. Choices: - sedimentation - oxidation - condensation - fermentation A:
Ans: fermentation

(Q).
Q: What forms a barrier between the cytoplasm and the environment outside the cell? Read this paragraph and choose the correct option from the provided answers: The plasma membrane forms a barrier between the cytoplasm and the environment outside the cell. The plasma membrane has selective permeability. Choices: - cuticle - epidermis - cell wall - plasma membrane A:
(A).
plasma membrane

Ques:Q: During what in the small intestine do rings of smooth muscle repeatedly contract and then relax? Read this paragraph and choose the correct option from the provided answers: Mechanical Digestion in the Small Intestine The movement of intestinal smooth muscles includes both segmentation and a form of peristalsis called migrating motility complexes. The kind of peristaltic mixing waves seen in the stomach are not observed here. If you could see into the small intestine when it was going through segmentation, it would look as if the contents were being shoved incrementally back and forth, as the rings of smooth muscle repeatedly contract and then relax. Segmentation in the small intestine does not force chyme through the tract. Instead, it combines the chyme with digestive juices and pushes food particles against the mucosa to be absorbed. The duodenum is where the most rapid segmentation occurs, at a rate of about 12 times per minute. In the ileum, segmentations are only about eight times per minute (Figure 23.20). Choices: - mitosis - contraction - compression - segmentation A:

Ans:segmentation

Question: Q: How many stars are in our solar system? Read this paragraph and choose the correct option from the provided answers: Our solar system has only one star. But many stars are in systems of two or more stars. Two stars that orbit each other are called a binary star system . If more than two stars orbit each other, it is called a multiple star system. Figure below shows two binary star systems orbiting each other. This creates an unusual quadruple star system. Choices: - two - none - three - one A:
Answer:
one