How can biological weathering result in chemical erosion? A: roots loosen soil and break rocks

B: plants transpire water vapor

C: bacteria release acids and other agents that break down rock

D: large herds trample rocks and break up soil

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.

The transport tubes from food came down the plant are called?

Speed is the ratio of the distance of an object moves to