Idont understand . the producer ima use is grass, primary rabbit , secondary snake and terriary owl. how do i make a claim out of this and defend it with evidence

What advantages does a pedigree have over a written passage?

According to theories of how life began, how did early organic molecules begin to separate from the outside world? a: specialized enzymes were required b: chains of amino acids created a barrier c: formation of microspheres or vesicles d: rna catalyzed the formation of membranes

Fredrick griffith made a scientific discovery in 1928