This is due in five mintues please help

The climate of the continental united states is generally 1. tropical 2. temperate 3. arctic 4. highland

Which are examples of how technology has advanced scientific understanding.1using hot water to sterilize medical equipment.2transplanting a human organ into another individual.3inserting genes from one sheep into another cell to make a cloneunderstanding the different structures that make up a cell.4examining microorganisms from the deepest parts of the ocean

The chemical bond connecting one nucleotide with the next one along the nucleic acid chain is called a