The hydrocarbond tains of phospholipid a contain more double bonds than the hydrocarbon tails of phospholipid b. a membrane made of phospholipid a molecules will be than a membrane made of phospholipid b.

hey there!

so, when you eat, your teeth chew and grind food into smaller pieces. this is mechanical digestion. then reactions aided by digestive enzymes break down large food molecules into smaller molecules. this is chemical digestion. the two processes change the food into simpler substances that can be used by the body for raw materials and energy.

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tobey