Flask a contains photosynthetic green algae in water while flask b contains water with no algae. both are placed under lights set to cycle between 12 hours of light and 12 hours of dark. if the dissolved oxygen concentrations in both flasks are monitored, how will the dissolved oxygen concentration in the flask with algae compare to the control flask?

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coldest temperature they recorded add me europa2433

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relating to or denoting a system of numbers and arithmetic based on the number ten, tenth parts, and powers of ten.

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for the friend request.

when a figure, such as triangle (xyz) is reflected over the line y = x to create x'y'z' the x-coordinates and y-coordinates of the original image (pre-image) will be reversed for the image. (e.g., (x, y) > (y, x)) this means that the pre-image position of the x- and y-coordinates switch places which in turn provides a mirror like image of the original xyz.  

i notice that when i draw a line segment from x to x', that the points are parallel from each other -- they are exactly across from each other and do not intersect with any other points.  

yes, think i would see the same characteristic if you drew the line segment connecting y with the reflecting line and then y' with the reflecting line because of the essence of reflections. because it is a mirror image, each point was effected the same way which leads me to conclude that they same would apply to y and y'.