Biologists think that endosymbiosis gave rise to mitochondria before plastids partly because: (All eukaryotes have mitochondria whereas many eukaryotes do not have plastids)
Butter and lard are high in lipids.
Answer:
The polio strains cannot reproduce because they are weakened.
The plasma membrane, because it's a selective permeable which means it only allows certain things in like sucrose.
Lipids/Fats have glycerol in addition to three fatty acids. The structure of the fatty acids determines whether or not the fat is considered saturated or unsaturated. Phospholipids have four major components: fatty acids, a glycerol component, and both a phosphate group and a polar molecule
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