If, someday, an archaean cell is discovered whose rRNA sequence is more similar to that of humans than the sequence of mouse rRNA is to that of humans, the best explanation for this apparent discrepancy would be ________.

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#Question id: 11955

#Physiology

The process of obtaining food is known as ________ and requires specialized feeding mechanisms.

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#Question id: 11956

#Physiology

An advantage of a complete digestive system over a gastrovascular cavity is that the complete system ________.

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#Question id: 11957

#Physiology

Because the foods eaten by animals are often composed largely of macromolecules, animals need to have mechanisms for ________.

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#Question id: 11958

#Physiology

Fat digestion yields fatty acids and glycerol, whereas protein digestion yields amino acids; both digestive processes ________.

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#Question id: 11959

#Physiology

The process by which digested dietary substances cross cell membranes to be used by the body is known as ________.

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#Question id: 11961

#Physiology

The large surface area in the gut directly facilitates ________.