How can Earth’s layers be defined? Select 2 correct answers by their physical properties

by their amounts of land area

by their proximities to the core

by their chemical compositions

by their asthenospheres

Imagine you are introducing the lac operan and the trp operon to students who have never learned about it before. complete the table to compare the similarities and differences between the two operons

Diagram of the evolution of land plants?

Which statement is the best summary of the model? a-a series of aerobic and anaerobic reactions take place in cells b- the sun's energy moves through trophic levels in a food chain c-light energy is converted into stored chemical energy plants. d- food molecules are broken down in the cells if living things.