Laboratory Skills : Scientific Inquiry & Technique

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Living Environment Regents January 2008 Question 05

Tuesday, 21 April 2009 09:29

Option 4 – injecting 1mL of Drug A into 100 white mice with cancer and 1mL of distilled water into another group of 100 white mice of cancer.

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Living Environment Regents January 2008 Question 33

Wednesday, 22 April 2009 04:53

Option 1 – Shorter than bar X and placed to the left of bar X

This interpretation arises from the fact that the value of X is increasing from left to right and vice versa on the x-axis and the relative amount of ATP produced is increasing from bottom to top and vice versa.

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Last Updated on Monday, 30 November 2009 16:29

Living Environment Regents January 2008 Question 51

Wednesday, 22 April 2009 06:12
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Living Environment Regents January 2008 Question 52

Wednesday, 22 April 2009 06:16
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Living Environment Regents January 2008 Question 55

Wednesday, 22 April 2009 07:15

According to the graph the net change in the carbon dioxide level during the years 1960 through 2000 is 50 ppm

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Living Environment Regents January 2008 Question 60

Wednesday, 22 April 2009 07:50
Hypothesis – If pill bugs are given a choice of light or darkness, they will prefer the light area. The independent variable would be the presence or absence of light The 2 conditions that should be kept the same in all experimental setups are species of pill bugs and temperature. More pill bugs are found in the light area after completion of the experiment Add new comment

Living Environment Regents January 2008 Question 72

Wednesday, 22 April 2009 08:24

Name of substance C	Direction of Movement of Substance C	Reason for the movement of Substance C
iodine	High to low concentration	diffusion
Starch indicator	Into cell	Small size molecules

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Last Updated on Wednesday, 22 April 2009 08:33

Living Environment Regents January 2008 Question 73

Wednesday, 22 April 2009 08:28
Substance B is a complex carbohydrate and it did not move out of the model cell since it is a large molecule. Add new comment
Last Updated on Monday, 30 November 2009 16:30

Living Environment Regents January 2008 Question 75

Wednesday, 22 April 2009 08:31
Option 1 – Separating DNA fragments Electrophoresis is the motion of dispersed particles relative to a fluid under the influence of an electric field that is space uniform. It is not a method for changing genetic code or indicating presence of starch or separating color compounds. Hence, options 2,3 and 4 are incorrect. Add new comment

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