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Arthropod defenses are not always easy to categorize. Often,…
Arthropod defenses are not always easy to categorize. Often, new things are discovered in the field that appear to be defenses, but they haven’t been studied yet. For example, take a look at these two unusual images of structures that were both created by spiders (not the same spider). In the first image (below), a small spider has built a structure in its web that superficially resembles (at least to our eye) a much larger spider. If you look closely, you can see the actual spider resting in the middle of its creation. In the second image (below), you can see a structure that has been found on the surface of a leaf. Scientists have yet to see a spider actively building one of these, but they have observed baby spiders hatching out of that egg sac in the center. Choose ONE of the above images and speculate on how you think it might be used for defense (by the spider that created it). You don’t need to have any experience with these examples to answer this question – we simply want you to look at the photographs and come up with a logical hypothesis for how the structure in the photograph might provide defense. In your answer, be sure to indicate where in the predation sequence the defense would be most effective and what type of predators this defense would protect against (e.g., birds, bats, other spiders, etc.). What type of predators would this defense be least effective against?
Arthropod defenses are not always easy to categorize. Often,…
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Arthrоpоd defenses аre nоt аlwаys easy to categorize. Often, new things are discovered in the field that appear to be defenses, but they haven't been studied yet. For example, take a look at these two unusual images of structures that were both created by spiders (not the same spider). In the first image (below), a small spider has built a structure in its web that superficially resembles (at least to our eye) a much larger spider. If you look closely, you can see the actual spider resting in the middle of its creation. In the second image (below), you can see a structure that has been found on the surface of a leaf. Scientists have yet to see a spider actively building one of these, but they have observed baby spiders hatching out of that egg sac in the center. Choose ONE of the above images and speculate on how you think it might be used for defense (by the spider that created it). You don't need to have any experience with these examples to answer this question - we simply want you to look at the photographs and come up with a logical hypothesis for how the structure in the photograph might provide defense. In your answer, be sure to indicate where in the predation sequence the defense would be most effective and what type of predators this defense would protect against (e.g., birds, bats, other spiders, etc.). What type of predators would this defense be least effective against?
Use the scrоllbаr tо scrоll down inside the аreа below TEST 2 INTRO REMEMBER: Throughout the exam, make sure your camera captures a side view of your proctoring environment showing Both hands, Your exam papers, Your face profile, Your computer screen (Honorlock also captures the screen separately), keyboard, and mouse, Your cell phone, muted and positioned face down. IMPORTANT: Keep an eye on the camera view popup window Near the bottom right corner of your Canvas window, you should see a popup window showing your camera view. Make sure to leave that window visible throughout your proctoring session. Do NOT minimize it (if you inadvertently do so, then you can restore it by clicking on "Webcam" on the Honorlock toolbar located at the bottom of the testing window) or obscure it, and continue to ensure that your camera view properly shows all the required items (both hands, exam papers, your face profile, etc.). While some violations may be flagged immediately (e.g., your face not being visible), the system will NOT alert you to most types of violations during the session - instead, those will be flagged during the review of the session's recording conducted by the proctor and/or the professor. IMPORTANT: Keep an eye on the Canvas timer 2 hours and 15 minutes are allocated for this exam on Canvas, but you must finish writing within 2 hours, with the remaining 15 minutes used for scanning and submitting your work. On the right side of the Canvas window, there is a timer showing "Time Running". Do NOT hide that timer. Before the timer reaches 15 minutes, you must click on "FINISH UP", and then the "Next" button below. There will be no separate alert from the system during the session - if you finish up late, then your session will be flagged when the session's recording is reviewed. TEST 2