The steps of the dna ladder are made of

nucleotides
deoxyribose
paired nitrogen bases
phosphoric acid

Select the correct answer. which term do biologists use to describe the average number of individuals of a species per unit area? a. carrying capacity b. population density c. minimal viable population d. survivability curve

Do you think the gene eef1 alpha1 supports cell theory? explain your response.

What do isotopes of uranium have the same number of? what do they have a different number of? a) same number of protons; different number of electrons b) same number of protons; different number of neutrons c) same number of electrons; different number of protons d) same number of neutrons; different number of protons