There is a hypothesis that the origin of human bipedalism was linked to a shift from life in the trees to life on the ground in the grasslands of Africa. Which of the following is true about this hypothesis? Group of answer choices It has been upheld by subsequent scientific data on human origins. It was developed in consultation with genetic and fossil evidence. It has been rejected recently subsequent to new fossil evidence. It has become a scientific law.

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.

Which zone within the open-ocean zone is home to the most organisms? deep zone surface zone intertidal zone transition zone

In which ways are mercury and venus similar?