Question R3 Q9 - NSB Round Robin 2013

Sharks and salmon have evolved different adaptations. Which of the following statements is true?

W) Sharks lay eggs while salmon give birth to live young

X) Sharks have cartilaginous [kahr-tl-AJ-uh-nuhs] skeletons while salmon have bony skeletons

Y) Salmon possess gills while sharks do not

Z) Sharks possess opercula while salmon do not

Science Bowl Question