What is the type of nitrogen that plants and animals cannot use without it being converted to a different form?

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 molecules does hemoglobin decay into over time

The pronunciation aid that determines the stress placed upon a syllable is the