The upstairs of house might be warmer than the downstairs due to what heat transfer?

Match each description to the appropriate biome. tropical savanna desert tropical rain forest taiga tundra has sparse vegetation and very cold temperatures located near the equator and contains trees that form dense canopy layers is very hot and dry, and has plants that need little water has cold winters, heavy snowfall and is dominated by conifers has warm temperatures and is dominated by grasses

What the theory that the sun goes around earth was replaced with the theory that earth goes around the sun this was an exaple of a

The first amino acid of a new polypeptide chain is