Place the following terms in order from smallest (and least complex) to largest and most
organism, cell, tissue, organ system:
complex: organ,
(least complex) (most complex)

Which best describes red blood cells? a. they are colorless b. they protect against disease-carrying microorganisms c. they transport oxygen throughout the body d. they aid in blood clotting

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

Which element is found in both dna and proteins