This lab has introduced the use of daphnia‚ pill bugs‚ amoeba and Uglena. We the AP Biology students were first introduced to the test subjects to test his or her capability of handling living organisms for upcoming science experiments. The AP Biology students were asked to create original experiments for all test subjects testing reactions to gravity‚ light intensity and reaction to food. Daphnia‚ or Daphnia magna‚ are microscopic organisms in which the students created an original lab to test
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Preparation of an Ester Acetylsalicylic Acid (Aspirin) OBJECTIVE: To become familiar with the techniques and principle of esterification. DISCUSSION: Aspirin is a drug widely used as an antipyretic agent (to reduce fever)‚ as an analgesic agent (to reduce pain)‚ and/or as an anti-inflammatory agent (to reduce redness‚ heat or swelling in tissues). Chemically‚ aspirin is an ester. Esters are the products of reaction of acids with alcohols‚ as shown in the following equation using
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Lab Report The Effect of Resting on Clothespin Squeezing. Hypothesis: If you rest then the clothespin squeezing rate will increase. Materials:- Clothespin Clock Sneakers Procedure: Separate class into two groups (exercisers and resters). Exercisers will do jumping jacks for a minute. Exercisers and registers will squeeze clothespin for a minute Repeat steps two and three. Total of three trails. Precaution: Shoes must be tied. Space between exercisers. Healthy exercisers
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Discussion The possible identity of the unknown organisms in the mixed culture was limited to bacteria that we had worked with previously in lab. Initially a Gram stain was conducted in order to distinguish the unknown bacterium as a Gram-positive and/or a Gram-negative organism (Lancaster and Bennett‚ 2012; Kellenberger‚ 2001). Based upon the results‚ both Gram-negative and Gram-positive bacteria were observed in the unknown mixed culture (Table 1 and Table 2; Kellenberger‚ 2001). In order
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Lab Questions How is positive parenting different from negative parenting? Which do you think is more effective? Why? Do you think positive parenting should have more rules or fewer rules in the home? Why? How would you deal with a situation of biting? Do you think your approach would fit into a “positive parenting” framework? Why or why not? Why do new parents feel pressure? What are some of the biggest sources of worry for new parents? Why do you think have become so caught up in the details
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the acid in lactate acid‚ it interfere with electrical signals in muscles and nerves‚ slows energy reactions‚ and impairs muscle contraction. The burn up we feel in intense exercise is the cause of hydrogen ion. During this experiment(Muscle fatigue lab) it will be seen that after a while of squeezing a small ball there won’t be the same amount of energy that was started with first and you will feel a burn in your arms which makes you feel hurt and don’t do a lot of squeezing; which is called the
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Lab Week 2 Topic: Selling on the Web: Revenue Models and Building a Web Presence 1 Lab Questions Write a paragraph in which you describe the conditions under which a Web site could become profitable by relying exclusively on advertising revenue. In a second paragraph‚ provide an example of a company not mentioned in the chapter that is using the advertising-supported model and that is likely to be successful in the long run. Explain why you think it will succeed. ANS: Make sure you place
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Name_____________________ Section____________Date___________________ Lab Assessing Your Current level of Cardiorespiratory Endurance Cardiorespiratory endurance- is the ability of the body to perform prolonged‚ large-muscle‚ dynamic exercise at moderate-to-high levels of intensity. The 3-Minute Step Test I. How to Assess Your Cardiorespiratory endurance 1. Warm up before taking the test. Do some walking‚ easy jogging‚ and stretching exercises. 2. Practice stepping up onto and down
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“Brain Lab” Questions: 1. Structure Function Frontal Lobe It contains centres for reasoning and movement. Parietal Lobe It is for somatic sensing and taste. Occipital Lobe It is responsible for processing visual information from the eyes. Temporal Lobe It is involved in primary auditory perception‚ such as hearing. Cerebrum (Cerebral Hemisphere) It is the largest part of the brain which is the last centre to receive sensory input and integrate them. It also coordinates the activities of the other
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the cell. MATERIALS: Potato Forceps Stopwatch Scalpel Test tubes Knife Mass balance Graduated cylinder ruler salt solution test tube rack PROCEDURE: 1. Cut 18 potato cores from the same potato using a knife and place them onto the lab bench. Using a scalpel and ruler (calibrated in millimeters) cut the cores into 50 mm lengths‚ with care taken to ensure no potato peel being left on them. The cutting will be to an accuracy of 1 millimeter 2. Mass each potato core using the mass balance
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