Answer: Gains a chemical from its larval food plant.
- A Has very bright warning wing colours
- B Gains a chemical from its larval food plant
- C Flies faster than predators
- D Produces a loud warning sound
Correct answer: B. Gains a chemical from its larval food plant
Explanation: The Monarch stores a special chemical obtained from the milkweed it fed on as a caterpillar, making it unpalatable to birds.
Exponential growth produces an ever-steepening J-curve with no limit, an unrealistic long-term model; logistic growth produces an S-curve that levels off at the carrying capacity K, as growth rate (K−N)/K shrinks to zero once resources are fully used.
Concept context
How organisms interact with abiotic factors and respond to stress, plus population attributes, growth models, and interspecific interactions such as predation, competition, and mutualism.