Answer the following question given this paragraph: From the pharynx, air next passes through the larynx , or voice box. The larynx contains vocal cords, which allow us to produce vocal sounds. Q: From the pharynx, air next passes through what structure, also known as the voice box because it contains vocal cords? Choices: - diaphram - trachea - pancreas - larynx A:
larynx
Answer the following question given this paragraph: Examples of osmosis are evident in many biological systems because cells are surrounded by semipermeable membranes. Carrots and celery that have become limp because they have lost water can be made crisp again by placing them in water. Water moves into the carrot or celery cells by osmosis. A cucumber placed in a concentrated salt solution loses water by osmosis and absorbs some salt to become a pickle. Osmosis can also affect animal cells. Solute concentrations are particularly important when solutions are injected into the body. Solutes in body cell fluids and blood serum give these solutions an osmotic pressure of approximately 7.7 atm. Solutions injected into the body must have the same osmotic pressure as blood serum; that is, they should be isotonic with blood serum. If a less concentrated solution, a hypotonic solution, is injected in sufficient quantity to dilute the blood serum, water from the diluted serum passes into the blood cells by osmosis, causing the cells to expand and rupture. This process is called hemolysis. When a more concentrated solution, a hypertonic solution, is injected, the cells lose water to the more concentrated solution, shrivel, and possibly die in a process called crenation. These effects are illustrated in Figure 11.28. Q: Examples of what process are evident in many biological systems because cells are surrounded by semipermeable membranes? Choices: - reproduction - photosynthesis - apoptosis - osmosis A:
osmosis
Q: Answer the following question given this paragraph: The stratosphere is the layer above the troposphere. The layer rises to about 50 kilometers (31 miles) above the surface. Q: What is the layer above the troposphere? Choices: - sediment - condensation - earth - stratosphere A:
A: stratosphere
Question: Answer the following question given this paragraph: 37.5 Endocrine Glands The pituitary gland is located at the base of the brain and is attached to the hypothalamus by the infundibulum. The anterior pituitary receives products from the hypothalamus by the hypophyseal portal system and produces six hormones. The posterior pituitary is an extension of the brain and releases hormones (antidiuretic hormone and oxytocin) produced by the hypothalamus. The thyroid gland is located in the neck and is composed of two lobes connected by the isthmus. The thyroid is made up of follicle cells that produce the hormones thyroxine and triiodothyronine. Parafollicular cells of the thyroid produce calcitonin. The parathyroid glands lie on the posterior surface of the thyroid gland and produce parathyroid hormone. The adrenal glands are located on top of the kidneys and consist of the renal cortex and renal medulla. The adrenal cortex is the outer part of the adrenal gland and produces the corticosteroids, glucocorticoids, and mineralocorticoids. The adrenal medulla is the inner part of the adrenal gland and produces the catecholamines epinephrine and norepinephrine. The pancreas lies in the abdomen between the stomach and the small intestine. Clusters of endocrine cells in the pancreas form the islets of Langerhans, which are composed of alpha cells that release glucagon and beta cells that release insulin. Some organs possess endocrine activity as a secondary function but have another primary function. The heart produces the hormone atrial natriuretic peptide, which functions to reduce blood volume, pressure, and Na + concentration. The gastrointestinal tract produces various hormones that aid in digestion. The kidneys produce renin, calcitriol, and erythropoietin. Adipose tissue produces leptin, which promotes satiety signals in the brain. Q: The pituitary gland is associated with what bodily system? Choices: - nervous - digestive - cardiovascular - endocrine A:
Answer: endocrine
*Question*
Answer the following question given this paragraph: A voltaic cell uses a spontaneous redox reaction to generate an electric current. It is also possible to do the opposite. When an external source of direct current is applied to an electrochemical cell, a reaction that is normally nonspontaneous can be made to proceed. Electrolysis is the process in which electrical energy is used to cause a nonspontaneous chemical reaction to occur. Electrolysis is responsible for the appearance of many everyday objects such as gold-plated or silver-plated jewelry and chrome-plated car bumpers. Q: A voltaic cell uses what type of reaction to generate an electric current Choices: - spontaneous catalyst - chemical reaction - instantaneous redox - spontaneous redox A:
**Answer**
spontaneous redox
Answer the following question given this paragraph: The most powerful or influential individual in a group is sometimes called dominant. In genetics, a dominant trait means nearly the same thing. A dominant trait is the most influential trait and masks the other trait. Q: The most powerful or influential individual in a group is sometimes called what? Choices: - superior - gamma - beta - dominant A:
dominant