Astudent has obtained a sample of pond water for study. using the high-power lens, he observes several cells with nuclei. he can conclude that the cells are not bacteria.
true/false

Autotrophs a.consume their food to get energy b.may use photosynthesis to gain energy c.are also called consumers d.cannot use solar energy

How is ribosomal rna useful as a molecular clock? a. a large portion of the dna ring is not vital to structure or function, allowing it to accumulate neutral mutations. b. its rate of mutation increases over time as organisms continue to evolve and differentiate from each other. c. a slow mutation rate makes it useful for determining evolutionary relationships between ancient species. d. it is only found in select organisms, making it easier to compare relationships between species that have it.

Your client has just been prescribed oral iron. why would you advise this client to avoid taking their medication with coffee, tea, eggs, or milk?