Phosphorous cycle describes the movement of phosphorus through the atmosphere Largest pools Phosphate bearing Rock Rock needs to be weathered to release nutrients which are readily usable Geological driven timescale nucleic acids phospholipids ATP bones teeth mammals phosphate PO43 component of fertilizers found in runoff For the final Spectrophotometry Given a sample be able to spec it and tell its absorbance level with proper units Remember unit for absorbance is ODU Given a standard curve be able to translate the absorbance value to concentration value with proper units as determined from the standard curve provided You should be able to approximate this graphically i e with no equation provided and also get an exact value given the standard curve equation If you re told what a sample is for example if I tell you that you need to spec some Chlamy growing in High Nitrogen environment be able to choose the appropriate blank for that sample from the ones provided Given a research question be able to design an experiment to appropriately test your research question on a Population Level and Ecosystem Level This may be an especially good question for the Theory section of the final exam Secchi Disk is a circular disk used to measure water transparency in oceans and lakes The disc is mounted on a pole or line and lowered slowly down in the water The depth at which the pattern on the disk is no longer visible is taken as a measure of the transparency of the water This measure is known as the Secchi depth and is related to water turbidity Know what it is used for and how to use it Go over all past quizzes online and in class and look over the pictures you took during class using Transmittance 1 When calibrating the spectrophotometer the zero and 100 settings are determined 2 Which knob labeled below controls the wavelength of the spectrophotometer Spectrophotometer measures the ABSORBANCE of a substance based on the relative amount of whatever you are trying to measure without it light it lets through compared to a solution This solution that is without what you are trying to measure is called a BLANK Blanking the spec 100 transmittance 0 absorbance 3 Which of the following factors are all biotic predators parasites competitors mates 4 Which of the following groups would be the subject for population ecology The Taro plants in the University Lake over the course of a year 5 The manufacturers of Tomato Maker Fertilizer claim that their fertilizer will increase the productivity of tomatoes fruits if used as directed To test this a researcher applied the fertilizer to tomato plants over the course of 10 weeks Productivity was determined by the mass grams of the fruits produced Identify the dependent variable in this experiment Select one Mass of fruit produced 6 How many variables should you be manipulating during an experiment One 7 A young forester wanted to find out why bald cypress trees are normally found only in swamps A major feature of a swamp is the presence of standing water throughout much of the year To test whether living in standing water helps cypress trees grow rapidly he built a shallow pond in the middle of a very large pasture Then he planted 100 cypress trees in the pond standing water and 100 cypress trees in an adjacent pasture semi dry upland soil Both plots were of equal size 0 2 hectare Write a Null and Alternative Hypothesis Answer Null The cypress trees that he planted in the pond and in the pasture will have no differences based on the fact if the cypress tree will grow in water or not Alternative The cypress trees that he planted in the pond and in the pasture will have been different based on the fact if the cypress tree will grow in water or not What is the independent variable The independent variable is the water ground he used to plant the cypress trees in 8 Which of the following expressions correctly relates the energy of an ecosystem GPP R NPP Systematics and Diversity Classification groups organisms together based on shared characteristics System groups organisms based on the processes that caused the evolution of the characteristics Phylogeny the process by which species arise the taxonomic system based on descent or evolutionary history Taxonomy the branch of systematics devoted the naming of organisms uses a system of hierarchical classification to name organisms o Genus species o Domain Kingdom Phylum Class Order Family Genus Species Clade a group that includes all organisms back to their common ancestors o Paraphyletic a grouping of organisms is said to be paraphyletic if all the members of the group have a common ancestor but the group does not include all the descendants of the common ancestor o Monophyletic Groups which include all the descendants of a common ancestor o Polyphyletic recent species but not their common ancestors What is homologous 2 tissues that have the same evolutionary lineage What is analogous 2 tissues that have the same function different evolutionary lineage