- Which of these foods are high in fiber? cauliflower
kidney beans
white bread
oranges

How does the study of genetic disorders such as pku biologists understand normal alleles?

How can antibodies "remember" a particular bacterial invader or "antigen" on that invader?

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