what happens when transitioning between photosynthesis and cellular respiration?

Aseries of connections of food chain in an ecosystem is called a what

Body systems are not completely independent they integrate and work together describe one example of the integration between body systems

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.