Answer:
plasma membrane
Phospholipids are major components of the plasma membrane, the outermost layer of animal cells. Like fats, they are composed of fatty acid chains attached to a glycerol backbone.
Explanation:
Amoeba is a unicellular heterotrophs.It has no mouth but engulf food particles by spreading two of its pseudopodia and the food find its way into the food vacoule.The digested food is absorbed by the protoplasm by diffusion.
It is because of negative charge on DNA, they pushed through the gel [ get attracted to positive end of the plate ]
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The elephants are the keystone species in the Savannas of Africa. The ability of the elephants to knock over the several feet high acacia trees for feeding purposes makes the savannas a grassland. If the elephants were to disappear than the population of acacia trees will increase and the Savannas will be converted from grasslands to woodlands. It will lead to the disturbance of diversity in Savannas.