Answer the following question given this paragraph: This model shows the arrangement of oxygen and hydrogen atoms in a water molecule. A water molecule has a bent or angular (non-linear) shape, with an angle of about 105. The nucleus of the oxygen atom attracts electrons more strongly than do the hydrogen nuclei. As a result, the middle part of the molecule near oxygen has a negative charge, and the other parts of the molecule have a positive charge. In essence, the electrons are "pulled" toward the nucleus of the oxygen atom and away from the hydrogen atom nuclei. Water is a polar molecule, with an unequal distribution of charge throughout the molecule. Q: The oxygen atom in a water molecule pull the electrons away from the hydrogen atoms which leads to an unequal distribution of what? Choices: - nitrogen - atomic mass - orbits - charge A:
charge
Answer the following question given this paragraph: fibers, films, plastics, semisolid resins, and rubbers are also polymers. More than half the compounds produced by the chemical industry are synthetic polymers. Some common addition polymers are listed in http://catalog. flatworldknowledge. com/bookhub/reader/2547 - gob-ch13_s05_t01. Note that all the monomers have carbon-to-carbon double bonds. Many polymers are mundane (e. , plastic bags, food wrap, toys, and tableware), but there are also polymers that conduct electricity, have amazing adhesive properties, or are stronger than steel but much lighter in weight. Table 13.2 Some Addition Polymers. Q: More than half the compounds produced by the chemical industry are what? Choices: - replacement polymers - artificial polymers - gas polymers - synthetic polymers A:
synthetic polymers
Q: Answer the following question given this paragraph: Fermented Foods. Fermentation is a type of respiration that doesn't use oxygen. Fermentation by bacteria is used in brewing and baking. It is also used to make the foods pictured here. Q: What type of respiration does not use oxygen? Choices: - condensation - oxidation - cellular - fermentation A:
A: fermentation
Question: Answer the following question given this paragraph: Another benefit of Earth's magnetic field is its use for navigation. People use compasses to detect Earth's magnetic north pole and tell direction. Many animals have natural "compasses" that work just as well. For example, the loggerhead turtle in the Figure below senses the direction and strength of Earth's magnetic field and uses it to navigate along migration routes. Many migratory bird species can also sense the magnetic field and use it for navigation. Recent research suggests that they may have structures in their eyes that let them see Earth's magnetic field as a visual pattern. You can learn more at this URL: http://www. smithsonianmag. com/science-nature/How-Do-Birds-Find-Their-Way-Home. html. Q: What part of earth do many animals use for navigation? Choices: - oceans - atmosphere - molten core - magnetic field A:
Answer: magnetic field
*Question*
Answer the following question given this paragraph: Q: What is a common name for the descriptive hypothesis that help to understand patterns of descent? Choices: - genetic trees - genetic order - gene mapping - evolutionary trees A:
**Answer**
evolutionary trees
Q: Answer the following question given this paragraph: Q: In many polychaetes, the parapodia are richly supplied with blood vessels and also function as what? Choices: - tails - pores - scales - gills A:
A: gills