If there are more secondary consumers than primary consumers present in an ecosystem , what can be assumed about that ecosystem ? A. There is an imbalance in the ecosystem.
B. Everything is normal within the ecosystem.
C. The pyramids of numbers , energy , and biomass are in balance .

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.

Omg substrates with the same size and shape as the active site will bind to the enzyme. why is the key labeled the “bad” substrate?

As the earth formed, the force of gravity increased due to increased mass. what effect did this increased gravity have on the forming planet?