What is constitutive expression, and how does it relate to this experiment?

As , plants meet their needs for making food from air, soil, water, and the sun's energy in a process called there are plants called grow high in trees without here are words to put in the blanks. 1.) producers 2.) consumers 3.) chloroplasts 4.) epiphytes

What best explains the inability for life to exist in earth early atmosphere

The (blank) states that all loving things are made of cells.