Which Statement About Respiratory Adaptations Is True

question 31

Multiple Choice

Which statement about respiratory adaptations is true?

• A) Respiratory surfaces in all animals require ventilation.
• B) External gills are found only in invertebrates.
• C) Most fishes ventilate their gills by swimming almost constantly with their mouths open.
• D) In fish, water flows unidirectionally into the mouth, over the gills, and out from under the opercular flaps.
• E) Desiccation of the respiratory surface is more likely to occur in gills than in lungs.

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Definitions:

Foraminifera

Heterotrophic single-celled protists with a porous calcium carbonate shell and cytoplasmic extensions.

Outer Cytoplasmic

Pertaining to the area of cytoplasm situated near the outer boundary of a cell.

Gas Filled Vacuoles

Structures within some cells that contain gas, which can provide buoyancy or maintain cell shape.