A chemical or secretion released outside the body to transmit signals to members of the same species is_________________?
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Answer: B. Pheromone
Explanation
Pheromones act as chemical messengers transmitted externally between different individuals of the exact same species. These biochemical secretions trigger specific behavioral responses such as mating readiness or alarm warnings. Organisms rely on pheromone signaling to coordinate social activities without needing direct physical contact. Chemical communication is one of the oldest and most widespread signaling mechanisms found across animal kingdoms. Pheromones can be released into the surrounding air or deposited on surfaces to leave chemical trails. Researchers synthesize artificial pheromones to monitor and disrupt mating cycles of major agricultural pest insects.
Ants deposit chemical pheromone trails on the ground to guide colony workers toward newly discovered food. Moths emit powerful sex pheromones over long distances to attract potential mates during reproduction seasons. Beekeeping management utilizes alarm pheromones to understand colony defensive behaviors during hive inspection procedures. Hormones operate internally inside an individual body rather than traveling externally to reach other organisms. Juvenile hormones regulate internal developmental stages and metamorphosis rather than facilitating inter-organism communication signals. Ecdysone is an internal molting hormone controlling growth transitions rather than acting as an external signal.
- Subject
- Agriculture
- Category
- Agriculture
- Topic
- —
- Difficulty
- medium
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