4. What is the layer of gas called which is found
Stistosphere ?​

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.

Question#29: why does the tropical ocean have a greater temperature range than the temperate ocean?

Describe how a student should adjust the microscope to see the cells on a slide more clearly?