Elasmobranchs Have Solved Some of Their Osmoregulatory Problems by

question 29

Multiple Choice

Elasmobranchs have solved some of their osmoregulatory problems by

• A)producing dilute urine in copious amounts.
• B)actively capturing salt through their gills.
• C)actively transporting water through their gills.
• D)sequestering urea in their body tissues.
• E)producing uric acid as their major nitrogenous waste.

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Definitions:

Smell

A sense through which odors are perceived, involving the detection of chemical compounds by the olfactory system.

Optic Nerve

A paired nerve that transmits visual information from the retina to the brain.

Dendrites

Branch-like structures of neurons that receive signals from other neurons for processing in the brain.

Ganglion Cells

Neural cells in the retina that collect visual data from photoreceptors and convey it to the brain.