Match each energy source with its description.

1. most common renewable energy source
2. depends on time of day and time of year
3. most polluting energy source
4. liquid formed from remains of plants and animals
5. renewable source formed from organic material
solar
biomass
coal
Oil
hydropower

Talking listening and reacting non verbally are all part of communicating

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.

When listening the levels of orginization in orginisims from the smallest to most complex , which level is just below organs in complexity