What is the genotype ration between the cross yyrr x yyrr

How do accessory pigments chlorophyll?

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

Which level of taxonomy has the fewest organisms?