What is the function of lysomes in animal cells

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 a food web? a. the structure used to trap food b. a set of complex carbohydrates c. a group of interconnected food chains d. the pattern of food nutrition

True or false: the breakup of pangea resulted in warm wet global climates?