Which statement best describes annuals?

Which statement best describes annuals?

• A. Die back each year when temperatures drop to freezing point
• B. Live indefinitely
• C. Complete life cycle in 2 years
• D. Germinate in fall and reproduce in spring.

Answer: (A)

Annuals complete their life cycle in one growing season and die when conditions become unfavorable, typically with frost. In temperate regions, they germinate, grow, flower, and set seed, then perish as temperatures drop below freezing, so you must plant new ones each year. That frost-kill pattern is the clearest way to describe the annual habit, unlike perennials that live for multiple years or biennials that need two seasons to complete their cycle. Some annuals may germinate in fall or spring, but that seasonal cue isn’t universal for all annuals, whereas the one-season life cycle followed by frost kill is the defining trait.

Annuals complete their life cycle in one growing season and die when conditions become unfavorable, typically with frost. In temperate regions, they germinate, grow, flower, and set seed, then perish as temperatures drop below freezing, so you must plant new ones each year. That frost-kill pattern is the clearest way to describe the annual habit, unlike perennials that live for multiple years or biennials that need two seasons to complete their cycle. Some annuals may germinate in fall or spring, but that seasonal cue isn’t universal for all annuals, whereas the one-season life cycle followed by frost kill is the defining trait.