Currently, renewable energy provides about percent of the world's energy needs. Two factors that must be considered during a switch to a reliance on renewable energy are and . *

Eristics do scientists use to distinguish between organisms in different kingdoms

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 are examples of the plant life and animal life that can be found in each type of terrarium