Which statement best defines a biennial weed?

Which statement best defines a biennial weed?

• A. Completes life cycle in two years.
• B. Completes life cycle in one year.
• C. Lives for many years.
• D. Is evergreen.

Answer: (A)

Biennial weeds complete their life cycle in two years. They typically form vegetative growth in the first year, often as a low rosette, and then in the second year they bolt, flower, set seed, and die. That two-year pattern is what defines a biennial. An annual would finish in a single growing season, not two years. A perennial lives for more than two years and can regrow year after year from the same roots or stems. Evergreen describes leaf retention year-round rather than how long the plant lives or when it reproduces.

Biennial weeds complete their life cycle in two years. They typically form vegetative growth in the first year, often as a low rosette, and then in the second year they bolt, flower, set seed, and die. That two-year pattern is what defines a biennial.

An annual would finish in a single growing season, not two years. A perennial lives for more than two years and can regrow year after year from the same roots or stems. Evergreen describes leaf retention year-round rather than how long the plant lives or when it reproduces.