Which organ is part of the body system that transports nutrients from food through the entire body

Which of the following forest management practices is best for reestablishing areas of forest?

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 process is represented a.) deletion b.) nondisjunction c.) translocation d.) insertion