The answer is B. Scientist repeat the experiments in order to prevent bias.
Brainlest answer is always appreciated!
C: The arrangement and movement of the particles in the substance. Solid particles vibrate and are compact. Liquid slide past each other and are close together. Gas particles are fast moving and very spread out.
Answer:
Nitrogenous base, a Pentose sugar, and a Phosphate group.
C...the key is that they are photosynthetic...so they produce oxygen (like plants)!
