which of the following best describes how many excavata obtain nutrients for energy? multiple choice question. pseudopodia surround a smaller organism and use enzymes to digest it extracellularly. the broken down molecules are then absorbed. they are able to synthesize their own nutrients using energy from inorganic sources. small particles enter the feeding groove, are ingested through phagocytosis, and are digested into small molecules. small molecules that are present in the environment diffuse through the plasma membrane.