3. the two ends of a strand of dna are called the
a. codon and the anticodon, based on the order of the deoxyribose sugars and the phosphate groups.
b.5' and the 3' end, based on modifications in the deoxyribose sugar,
c. starting end and the ending end, based on the orientation of the dna within the chromosome
od. sense end and the antisense end, based on the location of the phosphate groups

Adigestive system that is a series of tubes beginning at the mouth and ending at the anus is a digestive system.

Ascientist wants to determine the effect of a new type of gasoline. he fillsone car with normal gasoline and another identical car with the new gasoline.which is the control group? a. the new type of gasolineb. the car with the normal gasolinec. the car with the new gasolinethe amount of gasoline usedd. the amount of gasoline used

Which statements describe resources? one of the factors people use when deciding where they will live is the availability of resources. renewable resources have little value for people. resources are unevenly distributed throughout the world. energy is the world resource which has the highest use. the use of nonrenewable resources has decreased in recent history. the use of resources is evenly distributed throughout the world. the world's oil supply will last for the next forty years if its use continues as expected.