The following list includes several examples of chemical groups commonly found in biomolecules: Hydroxyl group (−OH)
Amino group (−NH2)
Carboxyl group (−COOH)
Methyl group (−CH3)
Phosphate group (−PO4)
Sulfhydryl group (−SH)
Identify the answer choice that correctly lists the chemical groups found in all 20 amino acids.

(1 point)

2 and 3

2 and 4

5 and 6

1 and 3

How do symptoms created by inflammation the doctor

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

Explain how scientists use geologic time to determine the age of landforms.