URGENT: (Blank) is an well-tested explanation that tries to answer a “why” question of the natural world. Fill in the blank!

Differentiation of cells changes the nucleic information. true false

Jason adds the antibiotic penicillin to a bacterial culture. the bacteria develop genetic modifications in their genome, which gives them resistance to the antibiotic penicillin. what caused this genetic modification?

Tropical rain forests support more species per unit area than any other terrestrial ecosystem. what is one way rain forests are important to the health of the biosphere?