Which of the following is true about cells? cells have specialized components that all perform the same functions. a cell has a single component that performs all of the cell's different, specific functions. cells have specialized components that perform different, specific functions. a cell's components are all identical and perform the same function.

Which of the following is a possible reason for sleep? a) growth b)digestive c)speed d)intelligence

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.

What is the period of cell life when it is conducting