Which statement correctly explains the polarity of the water molecule?
the hydrogen end of the molecule has a partial negative charge and the oxygen end has a partial positive charge.
the oxygen end of the molecule has a partial negative charge and the hydrogen end has a partial positive charge.
both ends of the molecule have a partial negative charge, which attracts the other water molecule towards its

Zoe decided to measure the hand length of each of her classmates. first she marked a line across each student's wrist and lined up a ruler from this mark to the top of the middle finger to measure the length. then she recorded the measurements in the table below. marla did this the same way for each classmate, and then zoe used this ruler to measure each straight line and record the data below. this data is invalid. what is the most likely reason why it is invalid? the ruler is marked in centimeters, but zoe recorded data in inches. the range of lengths is too wide, so zoe must have misread the ruler. marla’s complicated measuring procedure was overly confusing. marla could have been inconsistent while drawing outlines of fingers.

Which statement correctly describes a way that mutations increase the likelihood that a species will survive in a changing environment

Apair of fruit flies reproduces and has 1,000 offspring. all 1,000 of the offspring have the alleles gg. what is the most likely combination of alleles for each parent