13. Would you expect a car's body to last longer if it was used only in Ontario (winter climate), or only in a hot desert climate? Why?

Solve it asap please

3. A(n) is a molecule that is synthesized in one part of the body and has an effect in a different part. A) fatty acid B) enzyme C) hormone D) vitamin 4. DNA is a double-stranded nucleic acid that exists as a double helix. Which is responsible for holding the double helix of DNA together? A) Phosphodiester bonds between complementary base pairs on each strand B) B-N-glycosidic linkages between the sugar-phosphate backbone of each strand C) Disulfide bonds between the cysteine residues on each strand D) Hydrogen bonding between complementary bases on each strand 5. Which type of inhibitor is most likely to bind somewhere other than an enzyme's active site? A) competitive B) lock and key C) noncompetitive D) substrate 6. The compound shown below is best classified as what type of lipid? HO, A) Triacylglycerol B) Soap C) Fatty acid D) Wax

Please help with question 2 d-f