Which of these statements about multi-celled organisms are true? (Select all that apply.) Each of their cells can carry out all necessary life activities for that organism.
Most of their cells have unique roles.
Their cells vary in size and shape.
Their cells are larger than the cells of one-celled organisms.

Which of the following are energy solutions that release pollution into the air>

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.

Amap's orientation is typically determined by an