Unlike cnidarians and platyhelminths, round worms have a(n) a. one-way digestive tract. b. single-opening digestive tract. c. reproductive structures. d. bilaterally symmetrical body plan.

Consider the diagram below, which represents components of the biosphere. what do the two arrows in the diagram most likely represent? a. radiation b. photosynthesis c. cellular respiration d. energy conversions will give to anyone who answers quickly

Mrna decodes information from the original dna master plan to build proteins in the during the process of ribosomes.

Why did rutherford say that bombarding atoms with particles was like "playing with marbles" what