Millions of years ago, seawater flooded part of the Mississippi River Valley. Scientists have concluded that chorus frogs were affected by the flooding. The flooded areas formed geographic barriers between chorus frog populations for millions of years. Which of the following most likely occurred as a result of the seawater flooding?A. The frogs lost the tadpole stage of their life cycle. B. Isolated populations of frogs became separate species. C. The frogs’ eggs were fertilized by sperm of marine species. D. Frog populations were protected from all the predators in their areas.

B. Isolated populations of frogs became separate species

Explanation:

During the million of years, the seawater flooded parts of the Mississippi rivers.  Thus the scientist concluded that this might have happened due to the fact that the flood barriers were formed as a geographical divided and they led to the isolation of the population of the frogs from the other species. Thus isolation s responsible for the distinction of the species and thus the difference in their adaptation and formation.

Mantle convection is the process that drives plate tectonics. the theory of plate tectonics states that the crust is divided into plates that float on the semi molten mantle below. the circular motion of the magma as it slowly rises and falls or move though convection cells drags the plates along causing them to move. the heat source in the lamp would represent the earth's core. the core is the source of energy that drives convection in the mantle. the lava represents molten magma under the earth's surface. if the lava lamp had floating pieces they would move as the circular motion of the lava in the lamp as it rises and falls would move them along the surface. these floating pieces would represent pieces of the earth's crust.