A forest rich in eucalyptus trees grows well after fires that clear the competing undergrowth, assuming that other conditions are good. Therefore, they have low facilitation high facilitation low resilience high inertia low inertia
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- Need help with the Hardy-Weinberg equation and frequency equation.The pupil of the human eye is approximately 0.8 cm in diameter when adapted to the dark. The ratio of the light-gathering power of a 1.6-meter telescope to that of the human eye is a. 2. b. 4. c. 20. d. 400. e. 40,000.Leaf Sample Type Illumination Level Oxygen Concentration Change Data (ppm) Elapsed Time (s) Oxygen Change Rate (ppm/s) Sun- Adapted 0% -15.05 40.0s -0.37625 Shade-Adapted 0% -9.03 40.0s -0.22575 Leaf Sample Type Illumination Level Carbon Dioxide Concentration Change Data (ppm) Elapsed Time (s) Carbon Dioxide Change Rate (ppm/s) Sun- Adapted 0% 15.05 40.0s 0.37625 Shade-Adapted 0% 9.03 40.0s 0.22575 Using the results for the change in carbon dioxide concentration in Procedure II as a reference, compare the rates of cellular respiration for sun-adapted versus shade-adapted leaves. What are the biological principles/bases underlying this comparison.
- The ultraviolet solar radiation easily penetrates the cloud system , but the re-radiated infrared waves in the form of heat are trapped for a variable time in the cloud systems .. true or falseThe accompanying photo shows a pipevine swallowtail caterpillarclimbing up a twig. (a) As the caterpillar climbs, itspotential energy is increasing. What source of energy hasbeen used to effect this change in potential energy? (b) If thecaterpillar is the system, can you predict the sign of q as thecaterpillar climbs? (c) Does the caterpillar do work in climbingthe twig? Explain. (d) Does the amount of work done inclimbing a 12-inch section of the twig depend on the speedof the caterpillar’s climb? (e) Does the change in potential energydepend on the caterpillar’s speed of climb? [Section 5.1](a) If A is the area of a circle with radius r and the circle expands as time passes, find dA/dt in terms of dr/dt.(b) Suppose oil spills from a ruptured tanker and spreads in a circular pattern. If the radius of the oil spill increases at a constant rate of 1 m/s, how fast is the area of the spill increasing when the radius is 30 m?
- Leaf Sample Type Illumination Level Oxygen Concentration Change Data (ppm) Elapsed Time (s) Oxygen Change Rate (ppm/s) Sun- Adapted 100% 22.94 40.0 s 0.5735 Shade-Adapted 100% 13.92 40.0 s 0.348 Leaf Sample Type Illumination Level Carbon Dioxide Concentration Change Data (ppm) Elapsed Time (s) Carbon Dioxide Change Rate (ppm/s) Sun- Adapted 100% -22.94 40.0 s -0.5735 Shade-Adapted 100% -13.92 40.0 s -0.348 In procedure I, the oxygen concentration changes differed between sun-adapted leaves and shade-adapted leaves. Can chlorophyll concentrations alone explain the differences seen between the two leaf types? ExplainScientists studied what caused leaf shedding in a drought deciduous (=shedding leaves during the dry season) subtropical species. They quantified the quantum yield (=efficiency) of the PSII complex and the leaf hydraulic conductance (=efficiency of leaf water movement) in leaves of that species during the wet to dry transition. Please describe the results in Figure Figure 1. Changes in leaf hydraulic conductance during the wet and dry season transition of a subtropical speciesEnvironmentally conscious Susan has been told that a newelectric car will only generate 6 ounces of greenhouse gases (GHG) permile, but that a standard internal combustion car is double that at 12ounces per mile. However, the nature of electric cars is such that the new technology and electric batteries generate 30,000 lbs. of GHG to manu-facture and another 10,000 lbs. to recycle. A standard car generates only 14,000 lbs. of GHG to manufacture, and recycling with established tech-nology is only 1,000 lbs. Susan is interested in taking a systems approach that considers the life-cycle impact of her decision. How many miles mustshe drive the electric car for it to be the preferable decision in terms ofreducing greenhouse gases?
- Where is the discharge in this photo? A discharge is: The flow or pumping of water from the ground; the opposite of recharge.Table 2: DCMU Time (min) A600 Control "Low" DCMU "High" DCMU 0 1.200 1.300 1.300 2 1.000 1.100 1.300 4 0.730 0.960 1.300 6 0.430 0.850 1.300 8 0.330 0.720 1.300 10 0.310 0.560 1.300 12 0.300 0.520 1.300 The negative control is "high" dcmu. 3. Why do we need this negative control for Part 2?At values of Y (fractionalsaturation below 0,1 and above0,9, the slopes of Hill plots tend toa value of 1, indicating an absenceof cooperativity.true or false.