Answer the following question given this paragraph: A cell wall is a rigid layer that is found outside the cell membrane and surrounds the cell. The cell wall contains not only cellulose and protein, but other polysaccharides as well. In fact, two other classes of polysaccharides, hemicelluloses and pectic polysaccharides, can comprise 30% of the dry mass of the cell wall. The cell wall provides structural support and protection. Pores in the cell wall allow water and nutrients to move into and out of the cell. The cell wall also prevents the plant cell from bursting when water enters the cell. Q: What is the rigid layer that is found outside the cell membrane and surrounds the cell? Choices: - cell barrier - cell shield - cell root - cell wall A:
cell wall
(Question)
Answer the following question given this paragraph: Q: Snow and rain are forms of what weather? Choices: - sediment - evaporation - cold fronts - precipitation A:
(Answer)
precipitation
Ques: Answer the following question given this paragraph: Q: What are fibers that depend on aerobic respiration called? Choices: - hydrogen fibers - evaporative fibers - fragile fibers - oxidative fibers A:
Ans: oxidative fibers
(Q).
Answer the following question given this paragraph: 27.5 Single Slit Diffraction Light passing through a single slit forms a diffraction pattern somewhat different from those formed by double slits or diffraction gratings. Figure 27.21 shows a single slit diffraction pattern. Note that the central maximum is larger than those on either side, and that the intensity decreases rapidly on either side. In contrast, a diffraction grating produces evenly spaced lines that dim slowly on either side of center. Q: What kind of lines does a diffraction grating produce? Choices: - nearly spaced lines - properly spaced lines - randomly spaced lines - evenly spaced lines A:
(A).
evenly spaced lines
Ques:Answer the following question given this paragraph: Below the lithosphere is the asthenosphere . The asthenosphere is also in the upper mantle. This layer is solid, but it can flow and bend. A solid that can flow is like silly putty. Q: What layer is below the lithosphere and in the upper mantle? Choices: - troposphere - magnetosphere - hydrosphere - asthenosphere A:

Ans:asthenosphere
Ques:Answer the following question given this paragraph: Q: The transmitted light strikes a photoelectric tube, which converts the light energy to? Choices: - heat - color - gas - electricity A:

Ans:
electricity