Answer the following question given this paragraph: Most prokaryotes have a peptidoglycan cell wall and many have a polysaccharide capsule (Figure 4.5). The cell wall acts as an extra layer of protection, helps the cell maintain its shape, and prevents dehydration. The capsule enables the cell to attach to surfaces in its environment. Some prokaryotes have flagella, pili, or fimbriae. Flagella are used for locomotion. Pili are used to exchange genetic material during a type of reproduction called conjugation. Fimbriae are used by bacteria to attach to a host cell. Q: The cell wall acts as an extra layer of protection, helps the cell maintain its shape, and prevents what? Choices: - extinction - exhaustion - Respiration - dehydration A:
dehydration
(Question)
Answer the following question given this paragraph: Q: What does the moving piston in an engine turn? Choices: - hammer - muffler - brake - crankshaft A:
(Answer)
crankshaft
Ques: Answer the following question given this paragraph: Molecules move from an area of high concentration to an area of lower concentration until an equilibrium is met. The molecules continue to cross the membrane at equilibrium, but at equal rates in both directions. Q: What protects reptiles from injury and loss of water? Choices: - hairs - pores - tail - scales A:
Ans: scales
(Q).
Answer the following question given this paragraph: All of the planets rotate on their axes in the same direction that they move around the Sun. Except for Uranus. Uranus is tilted on its side. Its axis is almost parallel to its orbit. So Uranus rolls along like a bowling ball as it revolves around the Sun. How did Uranus get this way? Scientists think that the planet was struck and knocked over by another planet-sized object. This collision probably took place billions of years ago. Q: All of the planets rotate on their axes in the same direction that they move around the sun, except for which one? Choices: - Jupiter - venus - Saturn - uranus A:
(A).
uranus
Ques:Answer the following question given this paragraph: called the relative osmotic pressure if neither solution is pure water, and it is called the osmotic pressure if one solution is pure water. Osmotic pressure can be large, depending on the size of the concentration difference. For example, if pure water and sea water are separated by a semipermeable membrane that passes no salt, osmotic pressure will be 25.9 atm. This value means that water will diffuse through the membrane until the salt water surface rises 268 m above the pure-water surface! One example of pressure created by osmosis is turgor in plants (many wilt when too dry). Turgor describes the condition of a plant in which the fluid in a cell exerts a pressure against the cell wall. This pressure gives the plant support. Dialysis can similarly cause substantial pressures. Q: What is the condition of a plant in which the fluid in a cell exerts a pressure against the cell wall? Choices: - constriction - tumor - hydration - turgor A:

Ans:turgor
Answer the following question given this paragraph: Visible light is the wavelengths of light humans can see. Q: What is the term for the wavelengths of light humans can see? Choices: - radiation - ultraviolet light - distinct light - visible light A:
visible light