It is important that we look at the number of species, not the number of individual organisms when figuring out the biotic index. Explain a situation where a stream could have a lot of individual organisms, but a low biotic index

The depth of a lake at a certain point, wich is a function of the distance of that point from shore, is 30 feet.

Max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.

Qrst is a parallelogram. determine the measure of ∠q pls