The unpaired cartilage of the larynx that is made of elastic cartilage and bends when you swallow is called the

Analogy- 1 is to arete as 5 is to cirque horn glacial valley hanging valley

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.

Apaleontologist finds a plant fossil that shows that the plant had seeds. what can the paleontologist conclude?