Question

they feed next to each other and watch for predators, alerting each other to danger. since the visual abilities of the two species are different, they each can identify threats the other animal would not as readily see.
a commensalism
b predation
c competition
d mutualism

Explanation:

• Commensalism: One species benefits, the other is neither helped nor harmed. Not the case here as both are interacting for mutual benefit (alerting each other).
• Predation: One organism (predator) hunts and eats another (prey). This is not about hunting but about mutual protection.
• Competition: Organisms compete for resources (food, space etc.). Here they are cooperating, not competing.
• Mutualism: A symbiotic relationship where both species benefit. In this situation, two species are near each other, watching for predators and alerting each other. Their different visual abilities mean they can cover more "predator - detection ground", and both benefit from the early - warning system.

Answer:

D. Mutualism