Answer the following question given this paragraph: The mouth is the first digestive organ that food enters. The sight, smell, or taste of food stimulates the release of saliva and digestive enzymes by salivary glands inside the mouth. Saliva wets the food, which makes it easier to break up and swallow. The enzyme amylase in saliva begins the chemical digestion of starches to sugars. Q: What is the first digestive organ that food enters? Choices: - stomach - tongue - esophagus - mouth A:
mouth
(Question)
Answer the following question given this paragraph: Many metals react with acids to produce hydrogen gas. A certain reaction produces 86.5 L of hydrogen gas at STP. How many moles of hydrogen were produced?. Q: Many metals react with acids to produce what gas? Choices: - neon - mercury - helium - hydrogen A:
(Answer)
hydrogen
Ques: Answer the following question given this paragraph: Moving water has energy ( Figure above ). That energy is used to make electricity. Hydroelectric power , or hydropower, harnesses the energy of water moving down a stream. Hydropower is the most widely used form of renewable energy in the world. This abundant energy source provides almost one fifth of the world's electricity. The energy of waves and tides can also be used to produce water power. At this time, wave and tidal power are rare. Q: What is the most widely used form of renewable energy in the world? Choices: - wind - fossil fuel - solar - hydropower A:
Ans: hydropower
(Q).
Answer the following question given this paragraph: Q: Scientists utilize what natural process to teach cranes born in captivity to migrate along safe routes? Choices: - natural selection - neuroimaging - expediting - imprinting A:
(A).
imprinting
Ques:Answer the following question given this paragraph: The cytoskeleton provides the shape of the cell. Q: What provides the shape of a cell? Choices: - nucleus - cytoplasm - cellulose - cytoskeleton A:

Ans:cytoskeleton
Answer the following question given this paragraph: Bacteria are so small that they can only be seen with a microscope. When viewed under the microscope, they have three distinct shapes ( Figure below ). Bacteria can be identified and classified by their shape:. Q: How are bacteria identified and classified? Choices: - by there movement - by their color - by there cell count - by their shape A:
by their shape