Answer the following question given this paragraph: Atherosclerosis normally begins in late childhood and is typically found in most major arteries. It does not usually have any early symptoms. Causes of atherosclerosis include a high-fat diet, high cholesterol, smoking, obesity, and diabetes. Atherosclerosis becomes a threat to health when the plaque buildup prevents blood circulation in the heart or the brain. A blocked blood vessel in the heart can cause a heart attack. Blockage of the circulation in the brain can cause a stroke. Q: What can happen if there is a blockage in circulation to the brain? Choices: - memory - automation - hydration - stroke A:
stroke
Answer the following question given this paragraph: Figure 23.16 The complex process of sexual reproduction in Paramecium creates eight daughter cells from two original cells. Each cell has a macronucleus and a micronucleus. During sexual reproduction, the macronucleus dissolves and is replaced by a micronucleus. (credit "micrograph": modification of work by Ian Sutton; scale-bar data from Matt Russell). Q: During sexual reproduction, the macronucleus dissolves and is replaced by what? Choices: - fluctuations - chromosomes - sporozoans - micronucleus A:
micronucleus
Q: Answer the following question given this paragraph: 29.4 Photon Momentum Measuring Photon Momentum The quantum of EM radiation we call a photon has properties analogous to those of particles we can see, such as grains of sand. A photon interacts as a unit in collisions or when absorbed, rather than as an extensive wave. Massive quanta, like electrons, also act like macroscopic particlessomething we expect, because they are the smallest units of matter. Particles carry momentum as well as energy. Despite photons having no mass, there has long been evidence that EM radiation carries momentum. (Maxwell and others who studied EM waves predicted that they would carry momentum. ) It is now a well-established fact that photons do have momentum. In fact, photon momentum is suggested by the photoelectric effect, where photons knock electrons out of a substance. Figure 29.17 shows macroscopic evidence of photon momentum. Q: Massive quanta, like electrons, also act like macroscopic particlessomething we expect, because they are the smallest what? Choices: - regiments of matter - battalions of matter - depth of matter - units of matter A:
A: units of matter
Question: Answer the following question given this paragraph: According to the cell theory, all organisms are made up of one or more cells. Cells are the sites where all life processes take place. Cells come only from pre-existing cells. New cells forms when existing cells divide. Q: What theory states that all organisms are made up of one or more cells? Choices: - the molecular anatomy theory - the atomic theory - the micro theory - the cell theory A:
Answer: the cell theory
*Question*
Answer the following question given this paragraph: Elements are either metals, nonmetals, or semimetals. Each group is located in a different part of the periodic table. Another way to categorize the elements of the periodic table is shown in Figure 2.9 "Special Names for Sections of the Periodic Table". The first two columns on the left and the last six columns on the right are called the main group elements. The ten-column block between these columns contains the transition metals. The two rows beneath the main body of the periodic table contain the inner transition metals. The elements in these two rows are also referred to as, respectively, the lanthanide metals and the actinide metals. Figure 2.9 Special Names for Sections of the Periodic Table. Q: Elements are either metals, nonmetals, or what? Choices: - reactive metals - partial metals - unstable metals - semimetals A:
**Answer**
semimetals
Q: Answer the following question given this paragraph: Reactivity is the ability of matter to combine chemically with other substances. Some kinds of matter are extremely reactive; others are extremely unreactive. For example, potassium is very reactive, even with water. When a pea-sized piece of potassium is added to a small amount of water, it reacts explosively. You can observe this reaction in the video at the URL below. ( Caution: Don't try this at home!) In contrast, noble gases such as helium almost never react with any other substances. Q: The ability of matter to combine chemically with other substances is known as? Choices: - turbidity - solubility - permeability - reactivity A:
A: reactivity