Describe the iron sulfide hypothesis and the lipid membrane hypothesis.

William Martin and Michael Russell noted that hot iron sulfide rising from the below the ocean floor combined with the cooler ocean water to form to me like structures made of many compartments and that biological molecules combined in the compartments of these two minutes the walls of the compartments were thought to act is the first cell membranes.

Sorry if this is a little long (:

Hope this helps!

-Payshence

the major parts of the digestive system:

salivary glands.

pharynx.

esophagus.

stomach.

small intestine.

large intestine.

rectum.

accessory digestive organs: liver, gallbladder, pancreas.