Animal A and Animal B each have 95% of their DNAin common. Animal A and Animal C each have 50% of their DNA in common.

How does this data support the hypothesis that life changed over time?

A. They all share at least 50% of the same DNAarrangement.

B. They all share similar migration patterns.

C. They all share similar embryo development.

D. They all share a series of closely related fossils

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 you run, you begin to breathe heavier and faster. your heart beats more quickly, bringing more oxygen to your cells. which organ systems are working together here?

How water is moving through the ecosystem ?