Cattle depend on microorganisms in their digestive tract to digest the cellulose in their diets. The cattle and the microorganisms are?
Acarnivores.
Bmutualistic symbionts.
Cherbivores.
Dparasitic symbionts.
In general, more complex animals are
AMore likely to rely on chemical digestion than to rely on mechanical digestion
Bmore likely to perform intracellular digestion than extracellular digestion
Cmore likely to have one body opening than to have two body openings
Dmore likely to have a digestion tract than to have a gastrovascular cavity
Acarnivores.
Bmutualistic symbionts.
Cherbivores.
Dparasitic symbionts.
AMore likely to rely on chemical digestion than to rely on mechanical digestion
Bmore likely to perform intracellular digestion than extracellular digestion
Cmore likely to have one body opening than to have two body openings
Dmore likely to have a digestion tract than to have a gastrovascular cavity