As altitude increases, atmospheric pressure decreases, which means less oxygen is diffused into the blood from the lungs. for instance, at 18,000 feet you would obtain 29% less oxygen than you would at sea level. this can lead to altitude sickness, or hypoxia as it is called. imagine a mountain climber, who lives at sea level, trying to climb mount kilimanjaro for the first time. the climber is very fit so he plans to summit the 19,341 foot peak in four days, though it usually takes first-time climbers five or six days. use your knowledge of equilibrium to predict the climber’s reaction to this speedy climb, and the reaction needed to restore equilibrium. match the equations to the appropriate blanks in the sentences. make certain each sentence is complete before submitting your answer. equilibrium shifts to o2releaseequilibrium shifts to hbo2formation1. when the climber ascends the mountain before acclimating, to restore homeostasis within the body.2. as the climber rehydrates and rests at a basecamp, hemoglobin (hb) is produced, which is the body's response to the stress. as a result, .3. when the climber returns to sea level before reacclimating, to restore homeostasis within the body.4. as the climber reacclimates to sea level, hemoglobin is replaced at a lower rate, decreasing hemoglobin concentrations in the blood. as a result, .

Invasive species are one of the major threats to biodiversity. these species multiply quickly and compete with native species for food, sunlight, spac and other resources. on the map, determine the area where native species will have limited resources available to them due to invasion threat from invasive species threat very low low medium high very high

Rease is an enzyme used by plants to break down urea (a nitrogen-containing compound) into carbon dioxide and ammonia. urease urea > > > carbon dioxide and ammonia ammonia is broken down by plants into a nitrogen source plants need to grow. thus, plants could not use urea as a nitrogen source unless it was first converted to ammonia. in soybean plants there are two different kinds of urease, one produced in the seeds and the other produced in the leaves of the plant. three types of soybean plants were used in a set of experiments: normal soybeans and two mutant strains, one lacking the urease in the seeds only (strain 1) and one lacking urease in the leaves only (strain 2). experiment 1 separate areas in a field were planted with normal, strain 1, and strain 2 soybeans. all types of soybeans appeared to grow, flower, and produce seeds equally well. there were no externally detectable differences among the strains. experiment 2 small pieces of plant leaves of equal weight were obtained from each type of soybean plant and separately placed on media in culture dishes. tissue growing in this way will become an unorganized clump of cells referred to as callus. to provide a controlled nitrogen source, half the tissue samples of each type were placed on media containing urea, and the other half of the samples were placed on media containing ammonia. after 30 days, the weight gain for each of the callus samples was determined. results are shown in the table below.

The graph below compares the rates of reaction of a burning candle and an exploding firework. comparing chemical reactions what can you conclude from the graph? the reaction that causes a firework to explode requires less energy to start, and occurs more rapidly than the reaction that causes a candle to burn. the reaction that causes a firework to explode requires less energy to start, and occurs less rapidly than the reaction that causes a candle to burn. the reaction that causes a firework to explode requires more energy to start, and occurs less rapidly than the reaction that causes a candle to burn. the reaction that causes a firework to explode requires more energy to start, and occurs more rapidly than the reaction that causes a candle to burn. mark this and return