Which component makes each amino acid unique? amino group carboxyl group r group phosphate group

What is the answer for the complicated molecules that make up living things usually contain carbon. why is carbon so important in these molecules?

Select the correct answer. which mutation is harmful to the organism? a. a mutation allowing moths to camouflage better on blackened tree bark b. a mutation making staphylococcus aureus resistant to the antibiotic methicillin c. a mutation inhibiting human immunodeficiency virus from attaching to and entering the cell d. a mutation causing uncontrolled cell division e. a mutation giving plant leaves a bitter taste to discourage herbivores from eating them

How do living things obtain phosphorus