Which is the best precaution against carbon monoxide poisoning on a boat?

How are the cell walls of a plant and fungus different ?

This is the process of making a prediction based on the results of prior observations of similar events.

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