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UGA BIOL 1104 - BIOL 1104L Assignment Scientific Literature and Biodiversity

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BIOL 1104L Weeks 2 and 3Assignment: Scientific Literature and Biodiversity This assignment includes questions to be completed during both the Face-to-Face (F2F) and Asynchronous Remote (AR) components of the lab module. The Face-to-Face part is written to be completed during the week you are F2F. The Asynchronous Remote part is done at your own pace through the week you are AR and are to be completed after reading the Asynchronous Remote information and reading the assigned news article posted in eLC. The entire assignment must be completed and submitted by the due date to receive credit. Files should be saved as 1104L-SLB-Lastname-Firstinitial.docx. Files not named this way will only earn up 19/20 the points on this assignment. In addition, please do not useany different font colors or highlights for your answers. It is yo u r responsibility to ensure that you have answered every question on this assignment. Blank questions or missed pages will earn 0 points. FACE-TO-FACE Instruction (10 points)On eLC, navigate to the Weeks 2 and 3 module and go the Face-to-Face folder. Read through theLab Background Information and follow along with the Lab Activities as you work through each question.Read through Lab Activity: Using Microscopes and Lab Activity: Observing Bacteria Plates and Cyanobacteria for Questions 1 and 2.1. You have an agar plate that has been previously been streaked with lake water. How many different types of bacteria are on the plate? How many total bacteria are there? After using the I2KI bottle, do any of the bacteria use starch? (1 pt)I saw three differently shaped bacteria, and there were at least one hundred there. The plate did not turn blue, so the bacteria do not use starch.2. Explain how the mode of nutrition for chemoheterotrophic bacteria differ from photoautotrophic bacteria (cyanobacteria). (2 pts) Chemoheterotrophic bacteria do not make their own food, whereas photoautotrophic bacteria do make their own food. Read through Lab Activity: Benthic Organisms for Question 3.3. How does the body plan of the planaria, Dugesia, complement its ability to survive in the benthos? What movement patterns do you observe? Create a water flow by aerating the culture with a pipette. What observations do you noticein the planaria’s response? (1 pt)The body of the planaria complements its ability to survive because it is flat, blends into its surroundings, and moves via cilia. It moves by stretching itself. The water flow did not seem to affect the planaria.BIOL 1104L Weeks 2 and 3Assignment: Scientific Literature and Biodiversity Read through Lab Activity: Exploring Planktonic Zones for Question 4.4. Take a look at your plankton sample under the dissecting microscope and make a wet mount for the compound microscope. Fill in the table below. Try to identify the organism, note any structures and features it has, what behavior or movements it exhibits, and how many of that organism you can see. Add more rows as needed. (1 pt) Organism Structures/Features Behavior/Movements Observed NumberSeenAlgae Long, string-like, greenNo movement observed. Not sure, but lotsPlankton Small, tear-drop shapedShort, fast bursts of motion; chemoheterotrophsDozens CyanobacteriaProtistsRead through Lab Activity: Fungi Hyphae for Question 5.5. What structures of the fungi can you see? Relate these structures to its mode of nutrition. (1 pt)I can see the mycelium (maybe rhizomorph) made up of hyphae. These structures increase the organism’s surface area so that it can absorb more nutrients.Read through Lab Activity: Plant Structure for Question 6. 6. Take a look at your sunflower seedling and the prepared slides of the sunflower structure. Explain how each of the different structures you examine enable the sunflower achieve its mode of nutrition. (2 pts)BIOL 1104L Weeks 2 and 3Assignment: Scientific Literature and Biodiversity The veins in the sunflower facilitate the movement of water and ntrients throughout the plant. Also, the green coloring indicates that the organism uses photosynthesis. This makes it a photoautotroph.Read through Lab Activity: Invertebrates for Question 7.7. Examine the pillbugs and worms on your tray. What structures and features of each organism do you notice? How does each organism respond to stimuli? Does it prefer one part of its environment to the other? (2 pts)I notice that both organisms have line indentations along their bodies that help them move. The worm has a shiny coat to help it burrow, and the pill bug has a shell to protect it. The worm responded to stimulus by burying itself and burrowing, and the pill bug responded by curling into a ball and hiding in itself.ASYNCHRONOUS REMOTE – Scientific Literature (10 pts) Read the Introducing Scientific Literature page on eLC to gain some context about scientific articles and tips on reading them. Refer to the peer review article by Koklaj, et al., “Plastic bag and facial cleanser derived microplastic do not affect feeding behaviour and energy reserves of terrestrial isopods” and respond to the following questions after reading the article. You should not be pulling information from the Abstract but rather the body of the paper. a) Read the Introduction section. What question is the paper seeking to address? (2 pts)b) Read Methods section 2.4.1. What was the control group and what were the variable groups? How many animals were used (sample size)? (2 pts)c) In the Results section, look at Figure 3. Describe the results from this figure. Based on this figure, was their hypothesis supported or not supported? (3 pts)d) In the Discussion’s third paragraph, the authors “suggest that 1) low exposure concentration, (2) short-term exposure duration, and (3) specific physiological and anatomic traits of isopods may be possible reasons for the lack of observed effects...” Choose one of these three and summarize their explanation of the reason. Consider howthey incorporated other studies. (3


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