Nucleotides contain sugar, a phosphate group, and a nitrogen base. Which of the following is a nitrogen base?(1 point) ribose

tyrosine

guanine

deoxyribose

Which term refers to the total dollar value of the goods and services produced in a country in a year?

Florian discovers a rock that is broken into pieces. each piece has several bands. which type of rock does florian predict these pieces will change into when subjected to heat and pressure? igneous magma metamorphic sedimentary

Acertain species of fish can have either long or short fins. the allele for long fins is dominant over the allele for short fins. a heterozygous, long-finned fish is crossed with a homozygous, short-finned fish. of the offspring, will have long fins and be , and will have short fins and be .