Is uranium a non renewable resource

During endocytosis, cells expel what they don't need take in what they need shrink due to loss of water

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

How many copies of genes do gametes have?