Which outcome occurs when salmon returning inland lack imprinted stream odors?

💡 Explanation

Salmon use an olfactory map formed during their juvenile stage; imprinting to specific chemical signatures of their natal stream allows them to navigate back to spawn. Without this olfactory imprinting mechanism, they fail to recognize and locate their spawning sites, therefore they cannot reproduce successfully, rather than experiencing metabolic or immunological changes.

• Which mechanism enables soaring birds to maintain altitude in ridge lift conditions?
• Which growth impediment emerges when C4 photosynthesis underperforms?
• Which thermal consequence results when a hibernating bear's skin undergoes vasodilation during an arousal phase?
• Which consequence results when localized injury hinders imaginal disc development?
• Which wing adaption results when a migratory bird experiences turbulence?
• Which outcome impedes bird ascension when air sacs rupture?