Select the correct answer.
lyndon is investigating whether putting plastic on her windows will seal out cold winter drafts. she covers a window on the south side of her
house with plastic and measures the inside temperature near the window. she also measures the inside temperature near a window without plastic
on the north side of her house. the windows are the same size and design. why is this not an ideal controlled investigation?
a.
the windows should be different sizes to introduce variation
b.
the drafts at each window may be different because the windows aren't near each other.
c.
temperature isn't a good indicator of cold winter drafts.
d.
outside temperature is a better indicator of cold winter drafts than inside temperature
e.
the type of plastic used in the investigation isn't mentioned.
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The correct answer is B) The drafts at each window may be different because the windows aren't near each other.

This is not an ideal controlled investigation because "the drafts at each window may be different because the windows aren't near each other.

A controlled investigation can be understood as the kind of experiment that can control the variable factors. This is so to observe the results with changes to the other variable. That is what makes it controlled. In the case of Lyndon's house, the windows are separated. One window is in the north, the other in the south. The way the sun shines on them during the day varies.

as university of miami psychologists debra lieberman and adam smith pointed out in a recent article in the journal current directions in psychological science, humans have social and psychological mechanisms to deter incest. with very few exceptions, marriages between brothers and sisters and between parents and their children are verboten in every human culture. the primary psychological anti-incest mechanism is the yuck response. even the idea of sex with their mom or dad, bro or sis is upsetting to most people. the psychologist jonathan haidt has found that nearly everyone is repelled by the prospect of brother-sister sex, even in hypothetical situations in which there is no chance of pregnancy).

the biological cost of incest

this raises an interesting question: just what’s so bad about incest? sure, having sex with your dad or your sister seems gross — but why? some anthropologists have argued that incest taboos are learned social conventions. this explanation, however, doesn’t make sense to me as it does not explain the widespread existence of anti-incest mechanisms in creatures ranging from cockroaches to chimpanzees. second, the incest taboo is about as close to a universal law as human moral rules get.

why should mechanisms to avoid incest be so widespread both in nature and across human societies? the answer is simple. the problem with having sex close with relatives is that there is an astonishingly high chance that your offspring will be born with a serious birth defect.

i think it's b or c hope this