Answer the following question given this paragraph: Behind each release of gas is an army of gut bacteria undergoing some crazy biochemistry. These bacteria break down the remains of digested food through fermentation, creating gas in the process. Learn what these bacteria have in common with beer brewing at http://youtu. be/R1kxajH629A?list=PLzMhsCgGKd1hoofiKuifwy6qRXZs7NG6a . Q: Bacteria break down the remains of digested food through a processed called what? Choices: - regulation - oxidation - synthesis - fermentation A:
fermentation
Answer the following question given this paragraph: The smallest piece of an element that maintains the identity of that element is called an atom. Individual atoms are extremely small. It would take about fifty million atoms in a row to make a line that is 1 cm long. The period at the end of a printed sentence has several million atoms in it. Atoms are so small that it is difficult to believe that all matter is made from atomsbut it is. The concept that atoms play a fundamental role in chemistry is formalized by the modern atomic theory, first stated by John Dalton, an English scientist, in 1808. It consists of three parts: 1. Q: An atom is the smallest unit of what that maintains the identity of the latter? Choices: - mixture - organism - cell - element A:
element
Q: Answer the following question given this paragraph: 24.1 The biological species concept emphasizes reproductive isolation. Q: What evolutionary concept emphasizes reproductive isolation? Choices: - chemical species concept - toxic species concept - reproductive method concept - biological species concept A:
A: biological species concept
Question: Answer the following question given this paragraph: The sugar glucose is a covalent compound. When sugar dissolves in water, it forms individual glucose molecules (C 6 H 12 O 6 ). You can see how this happens in the Figure below . Sugar is polar like water, so sugar molecules also have positive and negative ends. Forces of attraction between oppositely charged ends of water and sugar molecules pull individual sugar molecules away from the sugar crystal. Little by little, the sugar molecules are separated from the crystal and surrounded by water. You can watch this happening in the video at the following URL: http://www. youtube. com/watch?v=hydUVGUbyvU. Q: What is the chemical formula for a glucose molecule? Choices: - a5 h12 o6 - H2 C3 NA6 - d5 h12 o6 - c6 h12 o6 A:
Answer: c6 h12 o6
*Question*
Answer the following question given this paragraph: Lakes, ponds, streams, springs, and wetlands are fresh water bodies. The organisms that live in them are part of freshwater ecosystems. These ecosystems vary by temperature, pressure (in lakes), and the amount of light that penetrates. The type of plants that grow in these ecosystems varies. Q: Lakes, ponds, streams, springs, and wetlands are? Choices: - salt water bodies - man-made structures - land formations - fresh water bodies A:
**Answer**
fresh water bodies
Answer the following question given this paragraph: Catalysts are not reactants, but they help reactants come together so they can react. You can see one way this happens in the animation at the URL below. By helping reactants come together, a catalyst decreases the activation energy needed to start a chemical reaction. This speeds up the reaction. Q: A catalyst decreases the amount of what resource that is required in order to begin a chemical reaction? Choices: - positive energy - motion energy - kinetic energy - activation energy A:
activation energy