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3. After reading the scenario, fill in the table with the following information: A cancer biologist is interested in analyzing the anti-cancer effects of two different drugs (A and B) individually and in combination. He purchases four male mice that were all cloned from the same original mouse (and therefore are all genetically identical). He then injects 500 PC3 cancer cells just under the skin on the back of each mouse. The tumors are allowed to develop for four weeks in all of the mice before beginning any treatments with the anti-cancer drugs. After four weeks, he injects mouse 1 with drug A, mouse 2 with drug B, mouse 3 with a mixture of drugs A and B, and mouse 4 with plain water (no drugs). He then observes the mice as they either succumb to or recover from the cancer they developed and notes that mouse 1 and 2 both lived longer than mouse 4, and mouse 3 lived the longest of all. All of these mice were maintained in the same type of environment and cared for in the same manner throughout the entire experiment (e.g., all received the same amount and type of food and bedding, water and food were changed and/or replenished at the same time every day, each were exposed to eight hours of daylight per day, and the temperature within each cage was kept the same). 1. Question or questions being asked 2. Independent variable(s) 3. Dependent variable(s) 4. Constants 5. Controls 6. Hypothesis 7. Sample size 8. Presence of replication? Lab Exercise 1 Scientific Method

3. After reading the scenario, fill in the table with the following information: A cancer biologist is interested in analyzing the anti-cancer effects of two different drugs (A and B) individually and in combination. He purchases four male mice that were all cloned from the same original mouse (and therefore are all genetically identical). He then injects 500 PC3 cancer cells just under the skin on the back of each mouse. The tumors are allowed to develop for four weeks in all of the mice before beginning any treatments with the anti-cancer drugs. After four weeks, he injects mouse 1 with drug A, mouse 2 with drug B, mouse 3 with a mixture of drugs A and B, and mouse 4 with plain water (no drugs). He then observes the mice as they either succumb to or recover from the cancer they developed and notes that mouse 1 and 2 both lived longer than mouse 4, and mouse 3 lived the longest of all. All of these mice were maintained in the same type of environment and cared for in the same manner throughout the entire experiment (e.g., all received the same amount and type of food and bedding, water and food were changed and/or replenished at the same time every day, each were exposed to eight hours of daylight per day, and the temperature within each cage was kept the same). 1. Question or questions being asked 2. Independent variable(s) 3. Dependent variable(s) 4. Constants 5. Controls 6. Hypothesis 7. Sample size 8. Presence of replication? Lab Exercise 1 Scientific Method

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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After reading the scenario, fill in the table with the following information.
3. After reading the scenario, fill in the table with the following information: A cancer biologist is interested in analyzing the anti-cancer effects of two different drugs (A and B) individually and in combination. He purchases four male mice that were all cloned from the same original mouse (and therefore are all genetically identical). He then injects 500 PC3 cancer cells just under the skin on the back of each mouse. The tumors are allowed to develop for four weeks in all of the mice before beginning any treatments with the anti-cancer drugs. After four weeks, he injects mouse 1 with drug A, mouse 2 with drug B, mouse 3 with a mixture of drugs A and B, and mouse 4 with plain water (no drugs). He then observes the mice as they either succumb to or recover from the cancer they developed and notes that mouse 1 and 2 both lived longer than mouse 4, and mouse 3 lived the longest of all. All of these mice were maintained in the same type of environment and cared for in the same manner throughout the entire experiment (e.g., all received the same amount and type of food and bedding, water and food were changed and/or replenished at the same time every day, each were exposed to eight hours of daylight per day, and the temperature within each cage was kept the same). 1. Question or questions being asked 2. Independent variable(s) 3. Dependent variable(s) 4. Constants 5. Controls 6. Hypothesis 7. Sample size 8. Presence of replication? Lab Exercise 1 | Scientific Method
Transcribed Image Text:3. After reading the scenario, fill in the table with the following information: A cancer biologist is interested in analyzing the anti-cancer effects of two different drugs (A and B) individually and in combination. He purchases four male mice that were all cloned from the same original mouse (and therefore are all genetically identical). He then injects 500 PC3 cancer cells just under the skin on the back of each mouse. The tumors are allowed to develop for four weeks in all of the mice before beginning any treatments with the anti-cancer drugs. After four weeks, he injects mouse 1 with drug A, mouse 2 with drug B, mouse 3 with a mixture of drugs A and B, and mouse 4 with plain water (no drugs). He then observes the mice as they either succumb to or recover from the cancer they developed and notes that mouse 1 and 2 both lived longer than mouse 4, and mouse 3 lived the longest of all. All of these mice were maintained in the same type of environment and cared for in the same manner throughout the entire experiment (e.g., all received the same amount and type of food and bedding, water and food were changed and/or replenished at the same time every day, each were exposed to eight hours of daylight per day, and the temperature within each cage was kept the same). 1. Question or questions being asked 2. Independent variable(s) 3. Dependent variable(s) 4. Constants 5. Controls 6. Hypothesis 7. Sample size 8. Presence of replication? Lab Exercise 1 | Scientific Method
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