Answer the following question given this paragraph: Digestion consists of mechanical and chemical digestion. Mechanical digestion occurs in the mouth and stomach. Chemical digestion occurs mainly in the small intestine. The pancreas and liver secrete fluids that aid in digestion. Q: Where does chemical digestion mainly occur? Choices: - apendix - pancreas - liver - small intestine A:
small intestine
(Question)
Answer the following question given this paragraph: The state the water is in depends upon the temperature. Each state (solid, liquid, and gas) has its own unique set of physical properties. Q: What makes water change to a different state? Choices: - pressure - time - gravity - temperature A:
(Answer)
temperature
Ques: Answer the following question given this paragraph: Q: What evolutionary process does not favor altruistic behavior that causes the death of the altruist? Choices: - flow selection - characteristic selection - random selection - natural selection A:
Ans: natural selection
(Q).
Answer the following question given this paragraph: The cytoskeleton is a cellular "scaffolding" or "skeleton" that crisscrosses the cytoplasm. All eukaryotic cells have a cytoskeleton, and recent research has shown that prokaryotic cells also have a cytoskeleton. The eukaryotic cytoskeleton is made up of a network of long, thin protein fibers and has many functions. It helps to maintain cell shape, holds organelles in place, and for some cells, it enables cell movement. The cytoskeleton plays important roles in both the intracellular movement of substances and in cell division. Certain proteins act like a path that vesicles and organelles move along within the cell. The threadlike proteins that make up the cytoskeleton continually rebuild to adapt to the cell's constantly changing needs. Three main kinds of cytoskeleton fibers are microtubules, intermediate filaments, and microfilaments. Q: The cytoskeleton is a cellular "scaffolding" or "skeleton" that crisscrosses what? Choices: - golgi apparatus - cerebellum - cell membrane - cytoplasm A:
(A).
cytoplasm
Ques:Answer the following question given this paragraph: X rays and gamma rays are the electromagnetic waves with the shortest wavelengths and highest frequencies. X rays are used in medicine and dentistry and to screen luggage at airports. Gamma rays are used to kill cancer cells. Q: Which electromagnetic radiation is used to kill cancer cells? Choices: - ultraviolet rays - X-rays - plasma rays - gamma rays A:

Ans:gamma rays
Question: Answer the following question given this paragraph: Tonicity Tonicity describes the amount of solute in a solution. The measure of the tonicity of a solution, or the total amount of solutes dissolved in a specific amount of solution, is called its osmolarity. Three termshypotonic, isotonic, and hypertonicare used to relate the osmolarity of a cell to the osmolarity of the extracellular fluid that contains the cells. In a hypotonic solution, such as tap water, the extracellular fluid has a lower concentration of solutes than the fluid inside the cell, and water enters the cell. (In living systems, the point of reference is always the cytoplasm, so the prefix hypo- means that the extracellular fluid has a lower concentration of solutes, or a lower osmolarity, than the cell cytoplasm. ) It also means that the extracellular fluid has a higher concentration of water than does the cell. In this situation, water will follow its concentration gradient and enter the cell. This may cause an animal cell to burst, or lyse. In a hypertonic solution (the prefix hyper- refers to the extracellular fluid having a higher concentration of solutes than the cell's cytoplasm), the fluid contains less water than the cell does, such as seawater. Because the cell has a lower. Q: What describes the amount of solute in a solution? Choices: - viscosity - solubility - frequency - tonicity A:
Answer:
tonicity