What changes would you make to model the climate before the ice age?

Explain the importance of producers, primary consumers, secondary consumers and decomposers in an ecosystem.

And give a detailed description! scientist observes the boundary between two tectonic plates for a decade and finds that no new volcanoes have formed over the course of her investigation. does this result support the theory of plate tectonics? why or why not?

Dna replication or repair occurs in a cell in all of thw following situations except when