<span>to sue the government in cases of unjust laws to persuade legislators to share the scientists' views on issues to make honest, ethical presentations of data to represent the interests of the business community</span>
Explanation:
D the substance get downeards
D) The AV valves are supported by chordae tendineae so that they do not blow back up into the atria during ventricular contraction.
Adenine which is a purine base, always pairs with the pyrimidine Thymine in DNA and Uracil(also a pyrimidine) in RNA. The bond which is present between the two bases is a double hydrogen bond.
Guanine which is also a purine base, always pairs with the pyrimidine Cytosine, in the case of both, DNA and RNA. The bond which is present between the two bases is a triple hydrogen bond and hence, is stronger than the A-G double bond.
