Ques:Q: Nonflowering vascular plants have three basic types of leaves: microphylls, fronds, and what other type? Read this paragraph and choose the correct option from the provided answers: Leaves may vary in size, shape, and their arrangement on stems. Nonflowering vascular plants have three basic types of leaves: microphylls ("tiny leaves"), fronds, and needles. Figure below describes each type. Choices: - molds - tubes - stems - needles A:

Ans:needles
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Ques:Q: What is the tube-like device used to reliably measure lower levels of radiation? Read this paragraph and choose the correct option from the provided answers: These devices are not very sensitive to low levels of radiation, but more sensitive devices are also available that reliably measure the frequency of radioactive events. One such device is the Geiger counter. A Geiger counter is a tube filled with an inert gas that will conduct electricity when exposed to charged radiation, such as alpha or beta particles. When a charged particle enters the tube, it changes the electrical potential between the anode and the cathode, and this change in potential is registered by an electrical circuit as a single radioactive event. Geiger counters are fairly inexpensive and reliable, so they are useful in a wide range of applications. More complicated types of counters are also available, but are generally used only in sophisticated experiments. Choices: - Richter scale - weber counter - MRI machine - geiger counter A:

Ans:geiger counter
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Ques:Q: When methane burns, what is produced along with carbon dioxide? Read this paragraph and choose the correct option from the provided answers: Compounds can also react with oxygen, possibly creating oxides of more than one element. When methane burns, carbon dioxide and water are produced. Choices: - nitrogen - hydrogen - oxygen - water A:

Ans:water
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Ques:Q: What is the beneficial function to the body of sweating? Read this paragraph and choose the correct option from the provided answers: Sweating regulates body temperature. The composition of the sweat determines whether body odor is a byproduct of sweating. Visit this link (http://openstaxcollege. org/l/sweating) to learn more about sweating and body odor. Choices: - pheromone release - diuretic effect - calorie loss - regulating body temperature A:

Ans:
regulating body temperature
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