During photosynthesis, plants use (what) obtained from animals.

Carbon dioxide.

Explanation:

Plants use carbon dioxide from atmosphere and water from soil which is converted into glucose in the presence of sunlight. The light energy is converted into chemical energy.

The process of respiration makes carbon dioxide available in the atmosphere which is used by plants for this process.

Hence, carbon dioxide is the correct answer.

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.

image result for how many calories of energy will 20 grams of carbohydrates provide in one gram provides 4 calories

consuming the right balance of protein, carbohydrates and fat can you maintain a healthy weight and optimize your energy levels. protein and carbohydrates both contain 4 calories per gram, while fat provides 9 calories per gram.