science i reall need help i am stuggling

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

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

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    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

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