Sue is setting up an experiment to test whether fly maggots select a dark or a brightly lit environment. She sets up a chamber in which there is a gradient in light intensity from one end (dark) to the other (brightly lit).

The experimental hypothesis was “There will be a large difference between the number of maggots in a dark environment and the number in a brightly illuminated one.”

Which of the following is Sue’s Experimental condition? Select one option from the list below.

1) The same chamber and maggots but with a different light intensity gradient.

2 ) The same chamber and maggots but with a coloured light gradient.

3 ) An identical chamber with the gradient in illumination reversed. wrong answer

4) An identical chamber but with maggots of a different species.

5) An identical chamber with no light gradient.

6) A chamber with a different distance between the darkest and most brightly lit parts.

7) An experiment at a different time of day.

is 4 the correct answer plz someone help me and tell me the correct answer

How many times are you going to post this same bunch of questions? Which of the responses you got did you not understand?

http://www.jiskha.com/display.cgi?id=1386758380

http://www.jiskha.com/display.cgi?id=1386782045

http://www.jiskha.com/display.cgi?id=1386833176

http://www.jiskha.com/display.cgi?id=1386770306

http://www.jiskha.com/display.cgi?id=1386868090

etc:
Science need help
Sue is setting up an experiment to test whether fly maggots select a dark or a brightly lit environment. She sets up a chamber in which there is a gradient in light intensity from one end (dark) to the other (brightly lit). The experimental hypothesis was “There will be a ...
Tuesday, December 10, 2013 at 7:18am by john

science help plzzzzzzzzzzzzzzz?
Sue is setting up an experiment to test whether fly maggots select a dark or a brightly lit environment. She sets up a chamber in which there is a gradient in light intensity from one end (dark) to the other (brightly lit). The experimental hypothesis was “There will be a ...
Wednesday, December 11, 2013 at 5:39am by john

Science need help
What is the independent variable? 1 is that the correct answer help plz Sue is setting up an experiment to test whether fly maggots select a dark or a brightly lit environment. She sets up a chamber in which there is a gradient in light intensity from one end (dark) to the ...
Wednesday, December 11, 2013 at 8:58am by john

science urgent need help
What is the independent variable? Select one option from the list below. 1 is the correct answer help me please .thanks Sue is setting up an experiment to test whether fly maggots select a dark or a brightly lit environment. She sets up a chamber in which there is a gradient ...
Wednesday, December 11, 2013 at 12:14pm by john

science urgent help
What is the independent variable? Select one option from the list below. 1 is the correct answer help me please .thanks Sue is setting up an experiment to test whether fly maggots select a dark or a brightly lit environment. She sets up a chamber in which there is a gradient ...
Thursday, December 12, 2013 at 2:26am by john?????????

science i really really need help
What is the independent variable? Select one option from the list below. 1 is the correct answer help me please .thanks Sue is setting up an experiment to test whether fly maggots select a dark or a brightly lit environment. She sets up a chamber in which there is a gradient ...
Thursday, December 12, 2013 at 12:08pm by john???urgent plz

science i really really need help
Sue is setting up an experiment to test whether fly maggots select a dark or a brightly lit environment. She sets up a chamber in which there is a gradient in light intensity from one end (dark) to the other (brightly lit). The experimental hypothesis was “There will be a ...
Thursday, December 12, 2013 at 1:01pm by john???urgent plz read carfully

science i really really need help
The number of maggots, n, is a function of (or "depends on") light intensity, i. n = f(i) i is the independent variable and n is the dependent variable. In other words n depends on i.
Thursday, December 12, 2013 at 1:01pm by Damon

science i really really need help
Which do you think after reading that carefully? Number of maggots DEPENDS ON light intensity.
Thursday, December 12, 2013 at 1:01pm by Damon

science i really really need help
Therefore light intensity is independent and number of maggots is dependent.
Thursday, December 12, 2013 at 1:01pm by Damon

science i really really need help
Sue is setting up an experiment to test whether fly maggots select a dark or a brightly lit environment. She sets up a chamber in which there is a gradient in light intensity from one end (dark) to the other (brightly lit). In a previous question you were asked to identify an ...
Thursday, December 12, 2013 at 1:01pm by john???urgent plz read carfully

science i really really need help
Hypothesis: “There will be a large difference between the number of maggots in a dark environment and the number in a brightly illuminated one.” I want to rule out other possible reasons for the maggots clustering in one end. First put the light on in the left end. Hopefully ...
Thursday, December 12, 2013 at 1:01pm by Damon