Reflection: Make a short composition about the theme below: (3 to 5 paragraphs may do and not more than 150 words).

Safety Measures and Health Sanitation: A Call to Practice during my Community Quarantine

b. heterotroph

explanation:

the sugar-phosphate backbone forms the structural framework of nucleic acids, including dna and rna. this backbone is composed of alternating sugar and phosphate groups, and defines directionality of the molecule.

the solute can move "downhill," from regions of higher to lower concentration, relying on the specificity of the protein carrier to pass through the membrane. this process is called passive transport or facilitated diffusion, and does not require energy.