What is the environmental advantage of using strip logging?
1.Runoff from the cleared area rolls down to the previously logged region below.
2.Small strips of logged areas can provide wildlife corridors.
3.The road is cut along a streambed to avoid disrupting the forest ecosystem.
4.Strip logging involves planting strips of different species to try to increase biodiversity.
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A college student has a new job, and must balance classes and commute times to work. The student takes two weeks to drive from campus to the workplace by several routes, including a direct route through town, a highway route, and a route through a city park. Comparing the drive times, affected by the route, speed limits, and intersections is possible. The dependent variable is the
A. average time in minutes it takes to drive from campus to workplace. B. the number of cars in the same route. C. the type of vehicle the student is driving. D. the time in minutes between walking from class to their vehicle. E. distance in miles of each possible driving route from campus to workplace.
Although they are smaller than K+, Na+ ions fail to pass through K+ channels because Na+
A) is repulsed by positively charged amino acids at the mouth of the channel. B) is too small to interact with oxygen atoms in amino acids on all sides of the channel and therefore does not completely lose its waters of hydration. C) is always transported complexes to Cl?. D) is always transported in a complex with two other Na+ ions. E) is attracted by other Na+ ions, which are at higher concentration outside than inside the cell.
A dehydration reaction
A. forms glucose monomers from glycogen. B. is used to form polymers. C. breaks down complex molecules to simple ones. D. form glycerol and fatty acids from triglycerides. E. results in the splitting of a water molecule.
The role of a control in an experiment is to:
A) provide a basis of comparison to an experimental group. B) prove a hypothesis is correct. C) ensure the experiment can be repeated. D) prove that a hypothesis is correct and ensure repeatability.