19. In the table, clearly mark the renewable resource(s). 9
Resource Renewable
Air
Fish
Trees
Iron
oil
10

Read each description below and determine to which stage of sleep each pertains. then click and drag each box into the appropriate category below.

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

For which of the following ions is the intracellular concentration typically higher than the extracellular concentration? a. sodium b. calcium c. magnesium d. potassium e. chloride