Which of the following statements describes a change of weather? * A. Today is cloudy, but tomorrow will be clear and sunny.
B. The average rainfall has decreased over the past five years.
C. Ocean temperatures are projected to increase in the next ten years.
D. Glaciers are melting more rapidly in the last ten years.

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.

Me with biology endocrine system crossword also image left i need with hw

What’s the student’s scientific question