Which of the following statements regarding RNA is true? RNA molecules always form an anti-parallel double helix.

RNA molecules form the hereditary molecules of the cell.

RNA uses the sugar deoxyribose.

*RNA uses the nitrogenous base uracil.

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explanation:

b. heterotroph

explanation:

kelp are large brown algae that live in cool, relatively shallow waters close to the shore. they grow in dense groupings much like a forest on land. these underwater towers of kelp provide food and shelter for thousands of fish, invertebrates, and marine mammal species.

e) all of the above