Why can even low levels of a toxin have serious effects, if the toxin doesn't break down easily, like mercury?

Color blindness is a recessive trait. the gene for color blindness is on the x chromosome. the family tree below shows the trait of color blindness. the only unknown is the mother in the first generation

Set comes up with for examples of sound waves ocean wave light wave and hand wave which of tonys examples is not an actual scientific wave

Brainliest ! which would require more force to move or slow down between a bowling ball and a soccer ball? explain why?