What are the improvements in human society that have allowed the human population to increase in size exponentially? (Choose all that apply) cleanliness industry medicine agriculture

Why is it important to reduce the number of chromosomes in half when forming gametes for sexual reproduction?

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.

Drag each tile to the correct box. arrange the layers and faults from oldest to youngest.