What characteristic makes a star and a comet different from each other? A comet revolves around a star.
A star is composed of gas.
A comet is brighter than a star.
A star has a bright tail behind it.

What happened to rosalind franklin in 1956?

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

Type the correct answer in each box. use numerals instead of words. if necessary, use / for the fraction bar. the following chemical equation shows the combustion of ethane. balance the equation by filling in the coefficients. c2h6 + o2 → co2 + h2o