Answer the following question given this paragraph: Measurement of exposure to radioactivity is important for anyone who deals with radioactive materials on a regular basis. Perhaps the simplest device is a personal dosimeter, which is a film badge that will fog up when exposed to radiation. The amount of fogging is proportional to the amount of radiation present. Q: What is measured with a personal dosimeter? Choices: - alcohol concentration - blood insulin - internal temperature - exposure to radioactivity A:
exposure to radioactivity
Answer the following question given this paragraph: The Pressure of a Mixture of Gases: Dalton's Law Unless they chemically react with each other, the individual gases in a mixture of gases do not affect each other's pressure. Each individual gas in a mixture exerts the same pressure that it would exert if it present alone in the container (Figure 9.20). The pressure exerted by each individual gas in a mixture is called its partial pressure. This observation is summarized by Dalton's law of partial pressures: The total pressure of a mixture of ideal gases is equal to the sum of the partial pressures of the component gases: P Total = P A + P B + P C + . = i P i In the equation PTotal is the total pressure of a mixture of gases, PA is the partial pressure of gas A; PB is the partial pressure of gas B; PC is the partial pressure of gas C; and so on. Q: According to dalton's law, unless they chemically react with each other, individual gases in a mixture of gases do not affect each other's what? Choices: - mass - weight - density - pressure A:
pressure
Q: Answer the following question given this paragraph: Plants are the major producers in terrestrial biomes. They have five basic needs: air, warmth, sunlight, water, and nutrients. How well these needs are met in a given location depends on the growing season and soil quality, both of which are determined mainly by climate. Q: What broad group of living things serves as the major producers in terrestrial biomes? Choices: - vases - flowers - animals - plants A:
A: plants
Question: Answer the following question given this paragraph: Another barrier is the saliva in the mouth, which is rich in lysozymean enzyme that destroys bacteria by digesting their cell walls. The acidic environment of the stomach, which is fatal to many pathogens, is also a barrier. Additionally, the mucus layer of the gastrointestinal tract, respiratory tract, reproductive tract, eyes, ears, and nose traps both microbes and debris, and facilitates their removal. In the case of the upper respiratory tract, ciliated epithelial cells move potentially contaminated mucus upwards to the mouth, where it is then swallowed into the digestive tract, ending up in the harsh acidic environment of the stomach. Considering how often you breathe compared to how often you eat or perform other activities that expose you to pathogens, it is not surprising that multiple barrier mechanisms have evolved to work in concert to protect this vital area. Q: How does lysozyme destroy bacteria? Choices: - by antibiotic use - by eating them - by paralyzing them - by digesting their cell walls A:
Answer: by digesting their cell walls
*Question*
Answer the following question given this paragraph: Potential energy is energy stored in matter. Q: What is the energy called that is stored in matter? Choices: - stored energy - possible - mechanical - potential A:
**Answer**
potential
Q: Answer the following question given this paragraph: There are 44 autosomes and 2 sex chromosomes in the human genome, for a total of 46 chromosomes (23 pairs). Sex chromosomes specify an organism's genetic sex. Humans can have two different sex chromosomes, one called X and the other Y. Normal females possess two X chromosomes and normal males one X and one Y. An autosome is any chromosome other than a sex chromosome. The Figure below shows a representation of the 24 different human chromosomes. Figure below shows a karyotype of the human genome. A karyotype depicts, usually in a photograph, the chromosomal complement of an individual, including the number of chromosomes and any large chromosomal abnormalities. Karyotypes use chromosomes from the metaphase stage of mitosis. Q: Ectotherms undergo a variety of changes at the cellular level to acclimatize to shifts in what? Choices: - density - volume - altitude - temperature A:
A: temperature