What is the correct order of events: Homologous chromosome separate Chromosome condenses Lining up on metaphase plate, Crossing over Pairing up to form tetrad

Texas bluebonnet plants seen in this photo are an example of which ecological unit?

Which term describes the number of waves that pass a given point in a given time? crest frequency trough wavelength

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.