Bio 1500 Final Exam Mizzou 1 With Questions And Answers Latest Update Already Graded A

Bio 1500 Final Exam Mizzou 1 With Questions And Answers Latest Update Already Graded A Recognize dragonflies as formidable aerial and aquatic predators - ANSWERDragonflies live in water for the first two years of their life. After this adult dragonflies hunt other flying insects while they are flying themselves; they cannot feed while walking or sitting. Identify dragonflies as ancient insects (when, what, why) - ANSWERCarboniferious, meganura, first insects to fly, selection pressures Explain what residual lung volume refers to and why it exists - ANSWERResidual volume is the volume that is never exchanged. It is the amount of air left in the lungs after maximum exhalation. Residual volume exists because if not, our lungs would collapse. Which of the following is a feature of the human respiratory system that arises from having a large residual lung volume? - ANSWERThe PO2 of the air in the lungs is lower than the PO2 of the atmosphere. Develop more than one hypothesis for why dragonflies were so big - ANSWERatmospheric PO2, and the lack of aerial predators Rank the importance of team-working skills, content knowledge, communication skills, learning skills, ... for employers and graduate school admission - ANSWER1. team work -last is content knowledge Memorize the dates of major milestones in the history of life on earth, as indicated in the online learning module - ANSWER1. universe formed- 13.7 bya 2. earth formed- 4.5 bya 3. moon formed- bya 4. oldest rocks formed- 3.8-4bya 5. oldest fossils (or signs of life) 3.5-3.8bya 6. Cyanobacteria- 2500 mya 7. Eukaryotes- 2000 mya algae- 1200 mya "snowball" ice ages- 750-600 mya 8. first animals 590 mya 9. Cambrian explosion 545-520 mya 10 carboniferous- 360-330 mya 11. first dinosaurs- 230 mya 12. birds 150 mya 13. dinosaur extinction 65 mya 14. modern humans 200,000 years ago Recall environmental characteristics of the Carboniferous time - ANSWERlots of greenery, atmospheric PO2 was 35% Relate the changes of O2 levels in the atmosphere to biological events in the history of life. - ANSWERphotosynthesis evolved because of cyanobacteria, at first the rocks oxidized and used up all the oxygen. Once they reached a certain point, life exploded on earth because of the available oxygen. Great oxygenation event caused the ozone to form, mass extinction because excess O2. O2 reacted with methane- eventually caused snowball ice age Recognize that the geology of earth has been dramatically changed by biology - ANSWERthe development of photosynthesis and the ricks used up free O2 Describe the mechanism of diffusion at the level of single particles - ANSWERrandom movement Describe the pattern observed due to diffusion and the level of many particles - ANSWERhigh to low concentration Explain how the behavior of single particles explains the observed pattern at the many particles level - ANSWERthey continue to move from high to low concentration until the gradient no longer exists (reaches equilibrium) Explain the relationship between distance and time during diffusion and recall the important consequence for transport in organisms by diffusion - ANSWERDiffusion is only efficient over short distances; this limits the maximum size of the organism because of its limitation of O2 transportation Determine whether a particular set of data would be best depicted using a scatterplot, bar graph, or line graph - ANSWERcategorical= bar graph, change over time= line graph, correlation in events= scatter Describe the situations in which a logarithmic axis is preferable to a linear axis - ANSWERtypically, a log axis is helpful when you have a large range of data Recognize how graphs can be used to mislead people - ANSWERthe scales on the graphs can be manipulated to look like there is a large difference between different variable when there really is not Formulate a hypothesis about the factors that allowed insects to be so big, based on the findings of Clapham and Karr - ANSWERPO2 of the atmosphere and predation Describe and interpret Figure one of Clapham and Karr - ANSWERThe y axis on the top part is the length of the insects' wings in millimeters. The y-axis on the bottom graph shows the atmospheric environmental oxygen concentrations. The x-axis on the top labels the species as well as the time periods, while the x-axis on the bottom shows the age in million years. The black bars represent more than 50 measurements that occurred in that "bubble," this is to indicate that a lot of measurements were taken without crowding the graph. The top and bottom graphs are displaying the correlation of atmospheric PO2 and the wingspan length over time. Describe the evidence that supports Clapham and Karr's conclusions - ANSWERThey measured temperature, atmospheric PO2, and surrounding predators through fossils Identify the wavelengths (i.e. colors) of light absorbed by chlorophyll - ANSWERred and blue Recall the basic function, inputs, and outputs of the light dependent and light independent reactions of photosynthesis. Explain why O2 is a by-product of photosynthesis - ANSWERlight dependent-ATP is Synthesized NADPH is made H2O splits and O2 is the by product light independent- Calvin cycle uses the energy from ATP and NADPH to generate even more ATP, the protons are used as Energy and complex 1 & 2 are used to break down CO2 to create G3P. G3P is used to make glucose molecules identify ATP as the main transport form and immediate source of energy in cells - ANSWERthe purpose of photosynthesis is to generate ATP for the cells to use as energy Describe the chemical and energetic changes that occur as ADP cycles to ATP and back again to ADP - ANSWERThe bond between the 2nd and 3rd phosphate provide energy because As bonds are broken, energy is released. the opposite is the same, the molecules need energy to form the phosphate bonds back together to get ATP from ADP. Recall the processes that lead to the Great Oxygen Event & how earth looked before and after this event - ANSWERthe evolution of cyanobacteria Assess the different outcomes of the oxygen revolution regarding their consequences for life on earth and for earth's geology and atmosphere - ANSWER(O2 reacted with minerals first) the free O2 reacted with methane in the atmosphere and created the